Ton's freeware page
The following programs
are free to use (read disclamer at bottom).
The icon indicates the required operating system and
a flag shows the programs language.
- Tiny Boot Manager 10.11
(Nov 2010) (4kB)
a choice of up to 4 operating systems
(primary partitions on disk) to start at system boot. It
makes use of hiding partitions as introduced with OS/2
boot manager. Tiny boot manager itself however needs no
partition nor extra disk space (it only replaces the boot
code in the MBR sector 1 and leaves the message pointer
locations, NT signature, partition table and boot signature
It supports (LBA-)partitions greater than 2GB en disks
larger than 8GB. It does not support GPT and partitions
- T0-DOS (T0Format + T0DOSMnu + T0Drive)
14.5 (May 2014) (10kB)
- A more user friendly variant to "Tiny Boot Manager"
with mainly the same primary features and compatabilities.
It allows however to escape from partition boot and start
DOS instead. An unmodified IBM
PC-DOS 1.10 (or 1.0) can be copied in and started
from the (generally unused) space of track 0 on your fixed disk
as if it were a floppy and is made fully functional for you to
run your own DOS 1 compatible utilities! The set of programs
are designed to work on computers ranging from ancient PC's
up to the current generations of IBM compatibles.
IBM-DOS 1.1 system files can
be downloaded here. (11kB)
- T0-Format -
The installation program. It replaces the code in the MBR
and formats the remainder of track 0 of your fixed disk,
Existing partitions on your disk remain untouched.
The code in the MBR (track 0, sector 1) handles all
partition- and DOS boots autonomous and is fully compatible
with all known operating systems. The remainder of track 0
is formatted as a FAT-12 volume of max. 31 KB (DOS 1.1
system files need 13.5 KB of that). The code to make DOS
think it runs from a 160 KB floppy is invisible from DOS,
leaving as much space as possible for DOS and other
files and utilities. DOS 1 was chosen, because this is the
only version that fits in this limited space.
The package is designed to work (and is partially tested)
on old (8088) upto the latest generation PC's. It does
however not support GPT which is needed for partitions
Menu- An included utility, which is run by default from T0-DOS.
It enables by menu choice at system boot the start of any installed
operating system from up to 4 primary partitions. An optional
timeout feature automatically boots your default choice.
The menu is fully configurable. This program will work with
or without DOS 1 installed (e.g. on disks of old PC's
with insufficient space in track 0 for the DOS system files)
- T0-Drive -
A DOS device driver that gives access to the FAT-12 volume
on track 0 as an extra drive. It is included to allow users
to manage the contents of this volume from a DOS diskette or
USB-stick. (DOS 1 itself only supports diskettes of 160KB
and 320KB which are rare today) The driver supports all DOS
versions except version 1.
To unpack tar.gzip
files under Windows the freeware utility from 7-Zip can be used.
Although thoroughly tested and in use on various computers by me,
you may only use these programs at your own risk.
I can not be held responsible for any damage or data loss.