I fighting with this problem : http://qa.social.msdn.microsoft.com...s/thread/305a7539-e5d6-496b-8541-fb6f422bb8d3 also: 1) I have run sfc /scannow. No luck. 2) Uninstall 2005,2008 and 2012, because I got the same error in any version. 3) Reinstall only 2005. No luck. 4) I have run 2 or 3 differents register fixers. Same thing. 5) Run dta from cmd. 5) Try all google suggestions. Nope!. 6) Error occurs only with any dta version. Now I'm open to try any suggestion except reinstall Windows 7 x64!!