R. Loew Electronics Disk Partitioning Utility

                           Version 1.0

                           05/08/2008

                       Copyright (C) 2008
                       by Rudolph R. Loew




The R. Loew Electronics Disk Partitioning Utility provides the ability to
precisely partition a Hard Drive using one or more Boot profiles.



REQUIREMENTS

DOS, Windows 98, 98SE or ME.
BIOS Support for the size of Hard Drive required to run in normal mode.



CONTENTS

RFDISK.EXE      Disk Partitioning Utility Version 1.0 (Full Version Only)
RFDISKD.EXE     Disk Partitioning Utility Version 1.0 (Demo Version Only)
MANUAL.TXT      Users Manual
LICENSE.TXT     License terms and conditions
HISTORY.TXT     Revision History



DEMO VERSION

The Demo Version supports all of the Commands except the Write, PutMBR and
Xcize Commands. This allows you to try out the Program but you will not be
able to change any of the Partitions on the Hard Drive. You will be able to
Install and Uninstall the Multi Boot MBR but only Profile "0" will be
available.



INSTALLATION/UNINSTALLATION

None required. Run Executable from DOS or a DOS Box to use.



COMMAND SYNTAX

RFDISK [-RAW] [-CHS] [-Overlap] [-NoSwap] [-MaxDrive#] Write|Diag

The RAW Option specifies that RFDISK should use Direct I/O to access the Hard
Drive. Only standard Motherboard IDE drives can be accessed in this mode.
This can be used on older computers that do not support large hard drives.

The CHS Option specifies that RFDISK should use CHS (Old Interrupt 13 Calls)
Addressing rather than the default LBA (Interrupt 13 Extensions) Addressing.
A maximum of 8GB can be Partitioned in this mode.

The Overlap Option disables checking for Partition Overlaps.

The NoSwap Option disables rearrangement of multiple Primary Partitions when
the Active Partition is not the first.

The MaxDrive# limits the number of Hard Drives scanned. Some systems lockup
if nonexistent Hard Drives are scanned. This Option can be used to prevent
Lockup by limiting the number of drives scanned to the number of drives
present. The format of this option is "-#" where # in the number of drives.
For example, to scan two drives use "-2".

The Write Parameter enables Writing of updated Partition information.
The Diag Parameter disables Writing of updated Partition information,
instead a list of changes is shown. This is for Diagnostic purposes.

Either Write or Diag must be specified. Otherwise the Syntax message will be
shown and the Program will exit.



SINGLE BOOT MODE

Single Boot Mode is the default mode when initially Partitioning a Drive or
when modifying a Drive that was Partitioned elsewhere. A standard Master Boot
Record can be written and all Partitioning information is placed within this
Sector. In this mode all Boot Profile References will be shown as "-" and all
Partitions will be automatically linked to the default profile.



MULTI BOOT MODE

Multi Boot Mode provides for the support of multiple Boot Profiles. A
proprietary Master Boot Record is used containing a copy of the Active Boot
Profile. Successive Sectors contain standard MBRs or other types of Boot
Records along with the Partition information for each successive Boot Profile.

Once the Multi Boot MBR is written to a Hard Drive, RFDISK will automatically
run in Multi Boot Mode for that Drive. Uninstalling or Erasing the Multi Boot
MBR is required to return to Single Boot Mode.



MULTI BOOT PROFILES

Each Boot Profile is assigned a Letter (Case Insensitive) or a Number.
Profile "0" is automatically defined as the First Profile. This Profile will
be used by any Boot Profile that contains a Boot or Custom Record rather than
a MBR. Reserved Profiles "D" and "W" also use this Profile. Reserved Profiles
"D" and "W" are used with additional support Programs to support DOS 6 and
DOS 7 Boots along with Windows using the same C: Partition.

Multi Boot Mode can be used on Non-Boot Drives to allow selecting Partition
Profiles at Boot Time. All Drives up to and including these Drives must be
setup in Multi Boot Mode to support this option.



OVERVIEW MODE

At startup, after a Write Command, or a Multi Boot Setup Command, the Program
goes into Overview Mode. In this mode all Drives are displayed and Partition
editing Commands are disabled. Using the Drive "D" Command with no Drive
Number will also switch to Overview Mode. Multi Boot Setup Commands should be
run in this mode, otherwise any unwritten changes will be lost. If there is
only one Hard Drive, overview mode is disabled and RFDISK will go directly
into Drive Mode.



DRIVE MODE

When the Drive "D" Command is used with a Drive Number, RFDISK will enter
Drive Mode. In this mode only one Drive is displayed and the Drive Editing
Commands will be enabled. This mode is exited when the Write "W" Command
is executed. Using a Multi Boot Setup Command, or quitting will exit this
mode without saving any unwritten changes. Selecting another Drive will
discard unwritten changes and switch to the new Drive.



DISPLAY

When RFDISK is started and after each Command, RFDISK displays the partitions
currently defined. In Overview Mode all Drives are displayed. In Drive Mode,
only the Selected Drive is Displayed. After Writing or using a Multi Boot
Setup Command, all Drives are rescanned and Validated.

The First line contains the Drive Number, Estimated Geometry and Profile
Information for a Drive.

Partsecs is the Number of Sectors used by the Multi Boot MBR. In Single Boot
Mode the Count will be 1. The Terminating Null Sector is not included.

The Brackets contain a list where each character represents a sector. 
"." is the Multi Boot MBR
"0" is the First (Default) Profile Sector
"-" is the Standard MBR in Single Boot Mode
Any other Number or Letter represents a Multi Boot Profile ID.
The Terminating Null Sector used in Multi Boot Mode is not included.

The Active Entry is the ID of the currently Active Profile and represents the
Partition Profile currently written to the MBR. This is the Profile that will
be used if the Computer is Booted from a Different Drive such as a Floppy or
USB Drive without invoking the Multi Boot MBR.

If the estimated Drive Geometry does not match the Interrupt 13 reports, the
discrepancies are displayed.

If the Drive has been configured in Multi Boot Mode, but the proprietary MBR
code has been overwritten, a warning is displayed. This will happen if
Windows is installed after a Multi Boot Drive is setup. Use the MBR Command
to reload the Multi Boot MBR Code and Write it to the Drive.

The following lines show the Defined Partitions for the particular Drive.

Part  indicates a Primary Partition or Extended Partition Header
LPart indicates a Logical Partition
Type= is the Hexadecimal Partition Type Code
      0 = Undefined Filler
      1 = FAT12 CHS Partition
      4 = FAT16 CHS Partition (Less Than 32MB)
      5 = Extended CHS Partition
      6 = FAT12/FAT16 CHS Partition (Over 32MB)
      7 = NTFS
      B = FAT32 CHS Partition
      C = FAT32 LBA Partition
      E = FAT16 LBA Partition
      F = Extended LBA Partition

DOS 6.2 recognizes Types 1, 4, 5 and 6 and is limited to 8GB.

Primary and Extended Partitions ending above 1023 Cylinder (approx 8GB
typically) must be LBA Partitions (7, C, E or F).

Logical Partitions are not restriced as they take on the attributes of their
enclosing Extended Partition.

All Partitions defined within the range of an Extended Partition are set to
Logical Partitions and are referenced as Part of it.

Start= is the Starting Cylinder. A trailing "+" indicates that the Partition
starts on Head 1.

Logical Partitions always start on Head 1 as Head 0 holds the Extension
Record. A Primary Partition on Cylinder 0 must also start on Head 1.
An Extended Partition cannot start on Cylinder 0.

End= is the Cylinder after the End of the Partition.

If a Partition does not Start or End on Head 0 or 1 and Sector 1, the
entry is shown as Cyl/Head/Sec.

The estimated Geometry is used to convert between Cylinder and Sector
Numbers. For the Default Geometry of 255 Heads and 63 Sectors, each Cylinder
is a little less than 8MB.

If an existing Partition has a defined CHS geometry it is used, otherwise
INT13 calls are used to get the Geometry. If none are valid, 255/63 is used.
The Geometry "G" Command can be used to manually set the Geometry used.

The Status field indicates the status of the Boot Record for the Partition:
VALID  indicates a Boot Record with Valid Partition Info is present
INV    indicates a Boot Record with Incorrect Info is Present
DOSOF  indicates a Boot Record with Valid DOS 6 Partition Info is present
blank  indicates no detected Boot Record or is not a DOS Partition

A Partition marked INV will have it's Boot Record Erased if the Write Command
is used. The Erase Flag can be Toggled On or Off with the Erase "E" Command.
After Writing, the Status field will be blank indicating no Boot Record.

Ref= lists the Profile ID(s) this Partition is Linked to. This Partition will
be copied to the MBR, and enabled, if any one of the listed Profiles is
invoked during Boot. In Single Boot Mode the Partition will always be linked
to the MBR and a "-" will be shown in the Display.

Act= lists the Profile ID(s) in which this Partition will be the Active
Partition. This Partition will be tagged as Active in each of these Profiles.
In Single Boot Mode there is no need to specify a Profile and the Display
will show a "-" if it is marked Active.

The Active Partition will be placed First in the Partition Table regardless
of Position unless the NoSwap option is used in the RFDISK Command Line.



COMMANDS

RFDISK commands consist of three types of Commands.

Overview Commands are used to take actions that are not specific to a single
Drive and to select a Drive. These Commands are always enabled.

Drive Commands affect only a single Drive and are enabled only when a Drive
is selected.

Multi Boot Setup Commands are used to Install, UnInstall and Modify Multi
Boot structures. These are always enabled but will discard any changes made
in Drive mode.

All Commands only require that the first letter of the Command be used.

The "?" Commands displays a summary of enabled Commands.

Pressing ENTER alone redisplays the Drive or all Drives depending upon mode.



OVERVIEW COMMANDS

These Commands are enabled in Overview Mode as well as Drive Mode.


The Drive Command selects a Drive to Edit. Selecting a Specific Drive enables
Drive Mode.

D #   selects Drive #

D     discards any unwritten changes and returns to Overview Mode

If a previous Drive was selected any unwritten changes are discarded.


The Hide Command hides partitions above a specified limit to reduce the
number of Partitions displayed.

H #   hides Partitions above Cylinder #
H 0   hides all Logical Partitions
H     restores display of all Partitions

Hidden Partitions are shown as a line of asterisks,  one for each Partition


The Oldvalues Command discards any unwritten changes and rereads the Drives.
The Mode is not changed. The syntax is as follows:

O     


The <InputFile Command attaches a Text file to be used for Command Input.
Control is returned when End Of File is reached. This can be used to execute
a predetermined series of Commands and can be used with the Build "B" Command
to restore an earlier configuration or to duplicate a configuration.

<FILE  runs the commands contained within "FILE"


The Quit Command exits RFDISK. All unwritten data is discarded. The Command
Syntax is:

Q



DRIVE COMMANDS

Drive Commands affect a single drive and are only enabled in Drive Mode.


The Add Command adds a new Partition to the Drive. The Syntax is as follows:

A Type Start End [+]

Type is the Hexadecimal Partition Type
Start is the Start Cylinder
End is the Cylinder after the End of the Partition
The Optional "+" specifies that the Partition Starts on Head 1 instead of 0.

Logical Partitions and Partitions starting at 0 automatically start on head 1.


The Change Command changes the Type and/or End of an Existing Partition
The Syntax is as follows:

C Type Start NewType [NewEnd]

Type is the Hexadecimal Partition Type
Start is the Start Cylinder
NewType is the New Hexadecimal Partition Type
The optional NewEnd sets the Cylinder after the End of the Partition

NOTE: Changing the size of an Existing Partition does not resize the data or
      the Boot Record. The Partition will be marked INVALID and erased unless
      the erase flag is toggled off by the "E" Command.


The Remove Command removes an existing Partition. The Syntax is as Follws:

R Type Start

Type is the Hexadecimal Partition Type
Start is the Start Cylinder

Removing a Partition does not erase the Boot Record or data so the Partition
can be restored intact, even after a Write, if it is not overwritten.


The KillAll Command removes all Partitions from a Drive. This can be used
with the <InputFile Command to load a predefined set of Partitions.
The Syntax is:

K

The Multi Boot Mode and Profile IDs are not removed.


The Link Command attaches a Partition to a Multi Boot Profile. The Command
can be repeated to attach the Partition to more than one Profile. Logical
Partitions cannot be Linked since thay are part of an Extended Partition.
Limk the Extended Partition, to link all of it's Logical Partitions. In
Single Boot Mode all Partitions are linked so this command is not needed.
The Syntax is as follows:

L Type Start Reference

Type is the Hexadecimal Partition Type
Start is the Start Cylinder
Reference is the Multi Boot Profile ID 


The Unlink Command detaches a Partition from a Multi Boot Profile. Repeat the
Command to detach from multiple Profiles. The Syntax is as follows:

U Type Start Reference

Type is the Hexadecimal Partition Type
Start is the Start Cylinder
Reference is the Multi Boot Profile ID 


The New Table Command adds a New Multi Boot Profile and defines it's ID.
The Syntax is as follows:

N Reference

Reference is the Multi Boot Profile ID 

The new Profile will be added to the end of the Profile list and will have
no Partitions Linked to it. Adding Reserved ID's "D" or "W" will add the
Profiles to the List, and enable them, but they cannot be linked to as they
use Profile "0". The Profile will have standard MBR code.


The Set Active Table Command sets the currently Active ID which will be used
for the next Boot and copies the Profile's Partition information into the MBR.
Use this command to preselect a Profile if the computer will be rebooted from
Floppy or USB as the Multi Boot MBR will not be able to copy the Profile.
The Syntax is as follows:

S Reference

Reference is the Multi Boot Profile ID 

The Write Command must be used to commit these changes.

To force a prompt on the next Boot set the ID to "?". The MBR will be in an
undefined state if the Computer is Booted from a Floppy or USB Drive. If this
is a possibility, set an actual Profile, commit the changes using the Write
Command, reselect the Drive, then set the Active Table Profile to "?" and
commit it.


The Toggle Active Partition Command toggles on or off the Active flag for the
Partition in the specified Profile. In Single Boot Mode, the Profile ID is
not used. If turned on, the Partition will be the Active Partition if the
specified Profile is used during Boot. The Syntax is as follows:


T Type Start Reference

Type is the Hexadecimal Partition Type
Start is the Start Cylinder
Reference is the Multi Boot Profile ID (Multi Boot Mode Only) 


The Erase Boot Toggle Command toggles the Erase Boot Flag. If set, RFDISK will
Erase the Boot Record of the Partition when the Write Command is used to
commit the Partition changes to the Hard Drive. The Erase Boot flag is set if
incorrect Partition information is found in the Boot record during scan.
This Command can be used to clear the flag to prevent erasure. If the flag is
set, the status will show "INV". The Syntax is as follows:


E Type Start

Type is the Hexadecimal Partition Type
Start is the Start Cylinder

Extended Partitions cannot be Erased.


The Zero Fill Command adds or Removes Null (Type 0) Partitions in any
unallocated portions of any Extended Partitions. Unallocated areas can cause
problems as they may contain apparently valid Partition records. Add the Null
records before Writing changes and remove them before adding Logical
Partitions. The Syntax is as follows:

Z A   Adds Null Partitions
Z R   Removes Null Partitions   


The Geometry Command overrides any estimated Drive Geometry. LBA Start and
End Sectors of existing Partitions will not be changed. CHS entries of
existing Partitions and the start and end of new Partitions will be computed
using the new Geometry. The Syntax is as follows:

G Heads Sectors [Cylinders]

Heads is the Number of Heads per Cylinder
Sectors is the Number of Sectors per Track
The optional Cylinders argument sets the maximum number of Cylinders used.
If not present, the Cylinder limit is recalculated from the estimated Drive
size.
CAUTION: The Geometry must be set to the values shown by the Interrupt 13 AH=8
Command, before committing the changes, if any CHS accessible Partitions
exist.


The Find Command scans for Partition Table entries. Nested Partitions are not
displayed. The Syntax is as follow:

F [Start]

The Optional Start argument is the Starting Cylinder for the Scan.


The Validate Command reverifies the Boot Record of a Partition. The Syntax is
as follows:

V Type Start

Type is the Hexadecimal Partition Type
Start is the Start Cylinder


The Build Command creates a text file containing the Commands needed to
create the current configuration of the Drive. Importing the commands using
the <InputFile Command will rebuild the current setup. The Syntax is as
follows:

B SaveFile

SaveFile is the name of the file the commands will be written to.

The Boot Mode and Profile IDs are not saved and must be present on the Drive
before restoring the Partitions.


The MBR Command replaces any existing MBR with either the Standard MBR or the
Multi Boot MBR code. The Syntax is as follows:

M

The standard MBR is a Windows 98 MBR modified to set Partition Type 7 (MTFS)
to LBA mode. The Write Command must be used to commit the MBR.


The Write Command commits all of the changes to the Drive and returns to
Overview Mode. If Diagnostic Mode is set in the RFDISK Command Line, a list
of changes will be printed instead of Writing to the Hard Drive. The Drives
will be rescanned before returning to Overview Mode. The Syntax is as Follow:

W



MULTI BOOT SETUP COMMANDS

The Multi Boot Setup Commands will discard any unwritten changes to the
current Drive and switch to Overview Mode before executing. These commands
will be written to the Hard Drive immediately and do not require the Write
Command. You will be prompted before making changes.


The Install/Uninstall Multi Boot Command will switch the Drive between Single
Boot Mode and Multi Boot Mode. A New MBR will be written and the Partitions
will be moved to Profile "0" or back to the MBR. The Syntax is as follows:

I Drive# [UnInstRef]

Drive is the Number of the Drive
The optional UnInstRef argument specifies the ID of the Profile who's
Partitions will be copied to the Single Boot Mode MBR during an Uninstall.
If not specified, the "0" Profile Partitions will be copied.

During an Install, the Single Boot Mode Partitions will be copied to the "0"
Profile. Any disabled Profiles left over from the last Uninstall will be
lost. Use the PutMBR Command if you need to preserve them.

Uninstalling will disable all Profiles on the Drive. The Profiles can be
retrieved by using the PutMBR Command provided that the Install Multi Boot
Command has not been executed and the sectors following the MBR have not been
overwritten.


The PutMBR Command Reinstalls Multi Boot Mode along with any Profiles that
were disabled by the last Uninstall. Then the MBR code and Partition Table
from Single Boot Mode is copied to the specified Profile. If the Profile does
not exist, a new Profile will be added to the end of the list. The Syntax is
as follows:

P Drive# [Reference]

Drive is the Number of the Drive
The optional Reference argument specifies the ID of the Profile where the
Single Boot Mode MBR and Partitions will be copied to. If not specified,
they will be copied to the "0" Profile.

This allows user specified MBR codes to be placed in Profiles. To add a
custom MBR Profile, perform the following steps:

1. Uninstall Multi Boot Mode, optionally, specifying the Profile to be put in
   the MBR.
2. Exit RFDISK.
3. Install the custom MBR.
4. Run RFDISK.
5. Edit the Partitions as needed and commit any changes.
6. Use the PutMBR Command to place the MBR and Partitions in the desired
   Profile.

The custom MBR must be one Sector long. If not the Profiles may be corrupted
and the new Profile will not boot.


The eXcise Command removes a Profile Sector and packs the remaining sectors.
The Syntax is as follows:

X Drive# Reference

Drive is the Number of the Drive
Reference specifies the ID of the Profile to be removed.



PARTITIONS

RFDISK recognized 3 types of Partitions: Primary, Extended and Logical.

Primary Partitions are all Partitions except Types 5 and F that are not
nested within an Extended Partition.

Extended Partitions 5 and F are containers for Logical Partitions.

Logical Partitions are Partitions except 5 and F that are contained within
a preexisting Extended Partition.

Logical Partitions are not linked and cannot be made active. The enclosing
Extended Partition is linked to the desired Profiles. All Logical Partitions,
within an Extended Partition, are enabled or disabled together.

Type 0 Partitions are used to fill in gaps in Extended Partitions. These are
considered free space by some utilities. RFDISK uses them to fill gaps that
might otherwise be misinterpreted as containing other Partitions. The "Z"
Command can be used to add or remove these Partitions.

A Primary or Extended Partition that has no links to it in Multi Boot Mode
will not be written to any Profile and will disappear when the Write Command
is used.

Partitions containing Boot Records with Invalid Partition Information will
have their Erase flags set when scanned and will have their Boot Records
Erased when committed unless the "E" Command is used to clear their Erase
flags.

Partitions with Types above 7F may cause later Partitions to not be detected.
This is a bug in some versions of DOS. You may want to place these Partitions
at the end of the Drive.

Each Profile can support up to 4 Primary and Extended Partitions. More than
4 Partitions can be setup but the Write Command will not execute if there are
more than 4 Partitions in any Profile. Only one Extended Partition is
recognized by DOS and Windows. Multiple Primary Partitions in a single
Profile will be handled by DOS and Windows as follows:

Assign First Primary Partition in each Drive in INT13 order.
Assign all Logical Partitions in each Drive in INT13 order.
Assign remaining Primary Partitions in each Drive in INT13 order.

The Active Partition in each Profile will be placed First so that it can be
recognized as Drive C: on the Boot Drive. This can be overridden by the
NoSwap Option in the RFDISK Command Line.

Partitions can be placed in as many Profiles as desired.

A Profile with no Partitions linked to it can be used to prevent a secondary
Drive from being recognized by selecting this Profile during Boot.

The reserved "D" and "W" Profiles set up a Boot Overlay that uses the "0"
Profile but replaces the Boot Sector Code, pointed to, with custom code.
These are used to invoke modified IO.SYS files that allow use of DOS 6, DOS 7
and Windows 98 with a single C: Partition. They are displayed in lower case
in the Profile Display. Custom Boot Sectors also use the "0" Profile for
their Partitions. Contact author for information on these features.

WARNING: Partitions are not checked for size or total count.
Making a Partition too large or small may make the Partition unusable.
If too many Partitions are accessible at one time, DOS will ignore Partitions
after Z:.
Having more than one Active Partition in a single Profile will cause Boot
failure.


CHS and LBA

Cylinder/Head/Sector (CHS) Addressing mode is supported by all versions of
DOS and Windows. Primary Partition Types 1, 4, 6 and B, and Extended
Partitions of Type 5 are addressed by CHS. CHS Partitions are limited to the
first 1024 Cylinders so they are limited to approx 8GB or less depending upon
the Geometry. CHS accessible Partitions must be configured using the Geometry
used by the BIOS.

Logical Block Addressing (LBA) is supported by DOS 7 and up and Windows 95
and up. Primary Partition Types 7, C and E and Extended Partitions of Type F
are addressed by LBA. There is no limit on the size or location of LBA
Partitions and they are not dependent upon the Geometry setting. The Geometry
setting is only used to compute the Sector numbers from the entered Cylinder
numbers and to create the CHS entries for Partitions below 8GB.

Logical Partitions are accessed according to the type of Extended Partition.
All Logical Partitions, including Types 6 and B, are accessed by LBA if the
Extended Partition is Type F.



GEOMETRY

The Geometry of a Drive consists of the number of Cylinders on a Drive, the
number of Heads per Cylinder, and the number of Sectors per Track. RFDISK
obtains the head and sector information from 3 sources in the following order:

The first valid Partitions CHS End Record.
Interrupt 13 AH=8
Interrupt 13 AH=48H

The first one is used to set the Estimated Geometry.

If none are found, the Geometry is set to 255 Heads and 63 Sectors.

If the three results disagree, or the Geometry is set manually to a different
 value, a warning is displayed each time the Drive is Displayed.

Interrupt 13 AH=48H is used to get the Drive Size and is used with the other
two settings to determine the number of Cylinders. If the command fails or
returns 0, the Cylinder count is displayed as "????" and no "Out of Range"
checking is done.

Normally all Partitions created by RFDISK start at the first Sector of Head 0
or Head 1 of the specified Cylinder regardless of whether CHS or LBA is used
to access it.

The Geometry Command allows these setting to be overridden. Setting a
Geometry of 1/1 using the following Command:

G 1 1

will allow Partitions to be placed at specific Sectors. Logical Partitions,
or Partitions specifying Sector 0, will be written to the following Sector
as the Extension Record or MBR will be written first.

The Geometry MUST be set to the values shown for Interrupt 13 AH=8 before
Writing the changes to the Hard Drive if there are any CHS accessible
Partitions in any Profile that will be used.



BOOT PROFILE SELECTION

When setup in Multi Boot Mode, a Partition Profile can be selected at Boot
time.

Normally the last used Profiles will be reused if the Computer is rebooted.

To activate the Multi Boot Menu, Press and Hold down the Left-Control Key
before the Hard Drive boots.

The Previous Profile ID will be displayed and a ">" prompt will be shown.
Press ENTER to reuse the previous Profile.
Press the Number or Letter Key to select a new Profile.

If the next drive has a Multi Boot MBR the previous steps are repeated.

Successive drives will repeat these steps until there are no more drives or a
Drive does not have a Multi Boot MBR.

You can press ENTER repeatedly to reuse the previous Profiles on each of the
later Drives.

If you do not Press the Left-Control Key, the current Profiles will be shown
for each Drive in sequence without stopping to prompt.

Pressing the "?" key before pressing the desired Profile key will force the
Drive to query on the next Boot. "?" will be shown as the previous Profile
on the next Boot and you will have to enter a new Profile. The "?" kay can
be used each time to force a query on the following Boot.

Pressing the "*" key before pressing the desired Profile key will force the
Drive to query on all successive Boots. To turn off the permanent query mode,
press the "?" key and enter a new Profile. The Drive will query one more time
on the following Boot. It will not query again unless you use the "?" key
again or use the Left-Control Key later.

The Right-Control Key is not used by RFDISK so it can be used to bring up a
Windows Boot Menu without triggering a Multi Boot Prompt.

Whenever a Profile is manually selected, the Partition table from the
Profile's Sector is copied to the main MBR. This allows DOS, Windows etc. to
read the Partitions. This process is repeated on all succeeding Drives. The
MBR or Boot Record from the First Drive's Profile is read into memory and
executed.



RELATED PRODUCTS

RFORMAT  Configurable formatter for FAT Partitions.

QFORMAT  Quick formatter for FAT Partitions.

PARTS    Partition Mapper.

PATCH137 Large Disk Support Patch for Windows 98, 98SE and ME.

BOOTMAN  Large Disk Support BIOS Overlay for DOS, Windows 98, 98SE and ME.

IO.DOS   Modified IO.SYS files for use with "D" and "W" Profiles.
IO.EBD

IO.256   Patch to support 256 Sector per Cluster FileSystems.
VFAT     Supports 8GB FAT16 Partitions.

BIOS     Large Disk Support Patches for Tyan S1590 Motherboard and others.

EPIA     Patched BIOSes to fix bug in VIA EPIA BIOSes from 01/02 thru 06/05.

DOS      Patches to DOS 6.2 to access Drives larger than 8GB.

XPPATCH  Updates to Windows XP Original Edition to provide 48-Bit LBA support
         during installation.

PATCHENC Patch to Support Encrypted Hard Drives.



CONTACT INFORMATION

Rudolph R. Loew
506 Bieling Rd.
Elmont, NY 11003

1-516-352-9078

RLoew@hotmail.com

Website:  http://members.aol.com/rloew1

IP = conference.no-ip.org  PORT = 8192  (Conference Console)