[myron]

Tested our version (http://tinymediamanager.googlecode.com/f...ll_win.msi) and it worked here.

hmm... seems your windows installer is corrupt somehow?!
Try reinstalling
http://www.microsoft.com/en-us/download/...px?id=8483
(ups - NOT for win7!)

edit:
ok, for windows 7 you should try following:
open the CMD shell as administrator (type "CMD" in windows start menu, do a right click, run-as Admin)
do an "sfc /scannow"

If that does not help, try
Msiexec /unregister
Msiexec /regserver

hth
Myron