I was facing this issue with my Visual Studio 2012 RC on my Windows 8 Machine from the day I installed Office 15, I thought VS got crashed and today I tried to fix it by reinstalling it but it didn’t worked then I found solution in a comment on ACS Blogs which worked for me, so sharing with you.
Following was the Error I got when I try to start my visual studio
“The procedure entry point _ Atomic_fetch_sub_4 could not be located in the dynamaic link library C:\Program Files(x86)\Microsoft Visual Studio 11.0\Common7\IDE\devenv.exe”
As Dave Lubash mentioned on ACS Blogs, “The CRT that ships with Office 15 Beta has a breaking change that prevents Visual Studio RC from running.”
that’s All. it will start working again. thanks to Dave Lubash for sharing this suggestion on ACS Blogs.