Hi, Thanks a lot. The major problem (mprexe-error) has gone! Some minor problems remain, so I'll briefly summarize what happened during install of RC3a: 1. gdi.exe and user.exe were found as English versions (very strange: I didn't apply any system mods except DirectX 9c, only Win98 SE fresh install and RC3, both German). I let both files override. 2. Msvcirt.dll (6.01.8637.0) and Msvcrt.dll (6.01.9844.0) were found to be newer. I kept them. 3. During copying files I got Winoldap-error 'Invalid page in vgafull.3gr' in DOS-window 'RUNPOST'. I closed the window, and the copy process went through. After reboot the Winoldap-error showed up again during system setup. This time, after closing the window, the system resp. setup hangs, and I had to power off. After reboot, Tweak UI and Setup terminated normally. I checked the version of VGAFULL.3GR, it's 4.10.1998. In addition, the entries for 'Explorer' and 'Open' under HKEY_CLASSES_ROOT\Directory\shell are gone, so right click 'Start' shows both grayed. Perhaps someone can post them here. ciao mumdigau