Current version is 0.46d8 - BusMaster_v46d8.rar/tgz (173 Kb/267.8 Kb). It is built at 2016.04.05
You can read about project history and current driver capabilities here .

Thanks to brave readers (and users), now we have list of bugs, troubles and solutions - the TroubleShooter

• Win XP (UniATA v30+)
• Win 2000 (UniATA v25g+)
• Win NT4 (UniATA v23b+)
• Win NT3.51 (UniATA v37b+)
• Win NT4 (UniATA prior to v23b)

1.  unpack BusMaster_v46d8.rar/tgz (173 Kb/267.8 Kb) (for ex. to C:\temp\uniata)
2.  My Computer -> Properties -> Hardware -> Device Manager
3.  select device, chose it's
       Properties -> Driver

    Note:
    IDE controllers may be listed no only in 'IDE controllers'
    section, but in 'SCSI and RAID controllers' or 'Other devices'.

4.  Update Driver -> Next
5.  ( ) ....
    (*) Install from a list or specific location (Advanced)
6.  Next
7.  ( ) ....
    (*) Don't search. I will choose the driver to install
8.  Next
9.  Have Disk
10.  enter path to .INF file for new driver
    If this is usual onboard IDE controller, use
        C:\temp\uniata\Release_Dist\uata_2kh.inf (or uata_xph.inf for v 30c)
    If this is IDE RAID controller or additional PCI IDE controller, use
        C:\temp\uniata\Release_Dist\uata_2k.inf (or uata_xp.inf for v 30c)
11. OK

12. chose in the list of available drivers the following line:

      Standard Dual Channel PCI BusMaster IDE Controller
         or
      Your IDE Controller Name

13. say 'Continue Anyway' for the question about missing digital signature.
    (YES, we want to continue the installation)
   
14. REBOOT your computer

1.  unpack BusMaster_v46d8.rar/tgz (173 Kb/267.8 Kb) (for ex. to C:\temp\uniata)
2.  My Computer -> Properties -> Hardware -> Device Manager
3.  select device, chose it's
       Properties -> Driver

    Note:
    IDE controllers may be listed no only in 'IDE controllers'
    section, but in 'SCSI and RAID controllers' or 'Other devices'.

4.  Update Driver -> Next
5.  (*) Search for a suitable driver for my device (recommended)
    ( ) ....
6.  Next
7.  [ ] Floppy disk drives
    [ ] CD-ROM drives
    [v] Specify a location
    [ ] Microsift Windows Update
8.  Next
9.  enter path to .INF file for new driver
    If this is usual onboard IDE controller, use
        C:\temp\uniata\Release_Dist\uata_2kh.inf
            or for UniATA versions below v30c
        C:\temp\uniata\Release_Dist\uata2kh.inf
            or for UniATA versions below v29a
        C:\temp\uniata\Release_Dist\uniata2kh.inf
    If this is IDE RAID controller or additional PCI IDE controller, use
        C:\temp\uniata\Release_Dist\uata_2k.inf
            or for UniATA versions below v30c
        C:\temp\uniata\Release_Dist\uata2k.inf
            or for UniATA versions below v29a
        C:\temp\uniata\Release_Dist\uniata2k.inf
10. OK

11. !!! IMPORTANT !!!
    You MUST chose the following checkbox:

    [v] Install one of the other drivers

12. Next
13. chose in the list of available drivers the following line:

      SCSI and RAID controllers | AlterWare | .......
         or
      IDE controllers           | AlterWare | .......

    the keyword here is 'AlterWare' in Provider column

14. say 'Yes' for the question about missing digital signature.
    (YES, we want to continue the installation)
   
15. REBOOT your computer

1. unpack BusMaster_v46d8.rar/tgz (173 Kb/267.8 Kb) 

2. Install driver using INF-file:
   a) Control Panel->SCSI Adapters
   b) select Drivers property sheet
   c) click on Add button
   d) click on Have Disk button
   e) enter path to UATA_NT4.INF
        or to UNIATA_NT4.INF for UniATA versions below v30c
        or ro OEMSETUP.INF for UniATA versions below v26e
      from UniATA distribution and click on OK button
   f) select "Universal BusMaster ATA/ATAPI Driver"
      from list and click on OK button
   g) enter path to UniATA.sys from UniATA distribution
      and click on OK button

   IMPORTANT !!!

   If you have installed IDE/ATA/BusMaster drivers from
   Motherboard's CD, you may need to uninstall them after
   UniATA installation.

   To ensure safity of IDE BusMaster installation/deinstallation
   please refer to points 1 and 6-8 of Manual installation for NT4 (see below).

3. REBOOT your computer

1. unpack BusMaster_v46d8.rar/tgz (173 Kb/267.8 Kb) 

2. replace atapi.sys with uniata.sys

3. REBOOT your computer

1. make a copy of your default Hardware Profile and set it as Default
   a) My Computer->Properties->Hardware Profiles
   b) select the Profile, marked as (Current)
      usually it's name is "Original Configuration"
   c) click on Copy button & name your copy (for ex. "UniATA")
   d) place UniATA profile at the top of list
      by clicking Up Arrow button
   e) click on Apply button

2. unpack archive with distribution

3. copy idedma.sys to your WINNT/System32/drivers directory from
   Release (or Debug ;) directory
4. import idedma.reg into registry (just press Enter on this file)
5. REBOOT your computer

6. disable "Universal ATA Driver" driver in "Original Configuration" HW Profile
   a) Control Panel->Devices
   b) select driver from list (idedma)
   c) click on HW Profiles button
   d) disable driver in appropriate HW Profile
      by selecting Profile Name from list and clicking
      Enable button
   e) click on OK button

7. disable "Atapi" driver in UniATA HW Profile

   IMPORTANT !!!

   If you have installed IDE/ATA/BusMaster drivers from
   Motherboard's CD, the initial state of "Atapi" driver
   would be "Disabled" !!!
   In this case you should disable that driver instead
   of "Atapi" !!!

8. set startup mode of "Universal ATA Driver" to Boot
   by clicking Startup button

You sould see the following:

--- Universal ATA Driver ---
Startup: Boot
HW Profiles:
  UniATA                 - Enabled
  Original Configuration - Disabled

       --- Atapi ---
Startup: Boot
HW Profiles:
  UniATA                 - Disabled
  Original Configuration - Enabled


9. REBOOT your computer

FB