It look like the MMC may have become corrupted somehow. open the run dialog and type in MMC, or try opening another snap-in like servcies.msc. If you get the same message then the something is definatly wrong with the MMC. if so try running the system file checker > SFC /SCANNOW
didn't work. same error. I customized my files (so i can have a imac theme) and that theme modified every file on my system. if i run the file checker or whatever it will remove my theme. are you sure this is the only way?
Well its the only thing I can think of. Besides doing a repair install. You may want to wait and see if anyone else has a better idea.
How sure are you that customizing your files didnt cause this problem?