I check forum threads before posting, and many guys have the same problem, or kind of. CCleaner is really messing Microsoft Office 2007 Enterprise on WinXP SP3 (Also in SP2, dunno Vista). In my case, inly complete reinstall of Office helped out.
After I run CCleaner, it disable half of ms funcions, it look like it is trial. So I am asking, why CCleaner supports "cleaning" of MS office apps. It should be pre-disabled.