os2fan2

There are some things to note about UMBs on modern machines and Windows. 1. You should avoid using UMBs under Windows, since this slows it down somewhat. Have a look at UMBPCI on the web on this. 2. Modern machines use more UMBs then the average 486, so there's less for DOS. UMBPCI will find out what's available. I generally try to avoid WFW311, sticking with Win311. Still, i don't think there's a lot of changes.

Some of their utilities are neat. They have ctm, a console-mode task mamager, and the freedos command.com (cmd.exe) and edit.com (edit.exe) recompiled to Winnt. You can get things like the device manager and user manager to function without all that other MS legacy attached to it.

I had a look at the IBM thinkpad disks (which are basically recovery disks, but the process can be done from PE). The base copy of Windows is an unmodified source tape. The modifications come between the text-mode install and the gui. You install windows in some sort of other mode from PE., using the switches in winnt32 to point to the correct boot drive. Once the source is in place, you copy over files as needed (usually oembois.*), and then on the reboot, the install happens normally. Usually the OEM toys are added after the setup, which is why you don't find things like OEM bitmaps in Windows or DOS setups.