I got a new PC running Windows 7, and it crashes 2-3 times per day, usually within a two hour period every 24 hours. Haven't figured out the problem yet, but I do show a handful of errors in event viewer connected to "SideBySide" with the following message: "Activation context generation failed for "c:\Windows\Installer\{67E03279-F703-408F-B4BF-46B5FC8D70CD}\WksWP.exe". Dependent Assembly msadctls,processorArchitecture="x86",type="win32",version="1.0.1801.0" could not be found. Please use sxstrace.exe for detailed diagnosis." Do you know anything about this? I read about a similar problem in with Vista but I couldn't find a download of the correct C++ runtime files for Windows 7. I downloaded and ran the older ones but the crashing problem and error messages have not gone away. I found that no matter what I did I kept getting several errors in the administrative section of the event viewer from the SideBySide installer Example>> Activation context generation failed for "C:\Windows\WinSxS\x86_microsoft.vc80.mfc_1fc8b3b9 a1e18e3b_8.0.50727.163_none_0c187ef99ee1d25a\MFC80 U.DLL". Dependent Assembly Microsoft.VC80.MFCLOC,processorArchitecture="x86", publicKeyToken="1fc8b3b9a1e18e3b",type="win32",ver sion="8.0.50608.0" could not be found. Please use sxstrace.exe for detailed diagnosis. Event ID 33 Welll It seems that a lot of other folk are having this problem so here is what I found on the google groups.. It is a case of missing Microsoft C++ Runtime files and this can apply for several event IDs evidentally. You may DL the redistributable installer for these runtime binaries from the following link>> All SideBySide errors have been gone for for almost 2 days as of the time of this post.. Bon Voyagé to all of you having this problem and may this fix it.... Uza