Not sure the following issue has been completely resolved. I experienced the problem just recently (08Sep14) with MVT logs indicating that the McSACore.exe process was not running.
Ran regedit, navigated to HKEY_LOCAL_MACHINE\SOFTWARE\McAfee\SiteAdvisor and discovered the following:
Although the McSACore.exe process issue APPEARS to be fixed when running MVT now, I don’t think the registry glitch has. Can someone please check their registry and let me know what you find? Is MVT still looking for 3.7.190 and subsequently changing the version entry value noted?
Now that I have the updated version of SiteAdvisor (22.214.171.124), I DO NOT want to run MVT until I know that it isn’t changing this value anymore.