Short Answer – Make sure Microsoft WSE 3.0 is installed.
Long Answer – Used FTM 2010 on Vista for over a year with no problems.(I had no previous versions of Family Tree Maker.)After not opening it for several weeks, suddenly received error box saying “because was not closed properly… need to compact last file opened…”.Clicked OK.Another error box popped up saying “Family Tree Maker 2010 Stopped Working… Windows is Shutting it Down…”.Running it as Administrator returned same errors.Therefore, I could not get into the FTM app to “compact” the problem file.After many frustrating hours searching online for an answer,and many iterations of backing up and moving my .ftm files,uninstalling the app, deleting files from registries, reinstalling, etc.,I finally Logged On to my PC as Administrator,went into Vista’s Event Log viewer and noticed errors saying “Microsoft.Web.Service3 not found”.So I downloaded Microsoft WSE 3.0from Microsoft’s website.FTM then opened without errors.I moved my files back into the Family Tree Maker folder and was able to “compact”my most recent .ftmb files.Everything is working fine now.I have no idea why Microsoft WSE 3.0 was missing in the first place.
If this post spares one person the frustration I went through,I am happy I posted it.