What to do with “The version of SOS does not match the version of CLR you are debugging” in WinDbg?

Question

I\'m having a problem with some of my apps. It\'s a wcf-based app running under IIS6 in Windows 2003 Server (x86):
In Event Log I get such an error from \"W3SVC-WP\" sou

Answer 1

You can automatically load the right SOS.dll. Check out John Robbins' great blog post http://wintellect.com/blogs/jrobbins/automatically-load-the-right-sos-for-the-minidump

You also might to check with .chain what's already loaded. In some cases you have to unload (e.g. .unload sos) the wrongly loaded dlls first.