When you use Control Panel / SCSI in Windows NT 4.0, and click on the Properties button, you receive:

Error occurred getting driver list from inf file. Error=536870386

Someone or something has replaced

%SystemRoot%\System32\cfgmgr32.dll.

To fix the problem, get a copy from your original installation media. If it is compressed:

Expand cfgmgr32.dl_ %SystemRoot%\System32\cfgmgr32.dll

If the file is in use, see tip 1908.