Windows put out a ton of updates today and when ever they update any .net framework, you'll likely notice mscorsvw.exe running and hogging up your computer. It's recompiling some database for the .net framework. I've had this thing drag on my machine for an entire day. Well, you can run a script to force your computer to speed up the process.
http://blogs.msdn.com/b/dotnet/archive/2...peed-it-up.aspx
http://blogs.msdn.com/b/dotnet/archive/2...peed-it-up.aspx