My repertory:
C:\games\Bethesda Softworks\Oblivion
C:\games\Bethesda Softworks\Oblivion\obmm
I use auto installer
Vikik
err wait, did you install Microsoft Net.Framework 2.0?
Per instructions on TESNEXUS...
Requires .NET 2.0 (The installer will offer to download it for you if it detects that it is not installed.)
Not sure if Windows7 requires a different version, it was so long since I installed mine that I can't remember if I was prompted to install .netframework 2.0 or not.
It could be that Windows7 has a higher version of .netframework but OBMM is soley dependent on the 2.0 version. Just to be sure, I would re-install it.
http://www.microsoft.com/downloads/details.aspx?familyid=B44A0000-ACF8-4FA1-AFFB-40E78D788B00&displaylang=en
http://www.microsoft.com/downloads/details.aspx?familyid=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en