oops... forgot this tidbit wen I posted earlier. Have you enabled .Net 3.5? Those installers might make some calls that were deprecated in 4.x. Enabling the 3.5 framework should workaround that. It's under the programs/features snap-in, Turn Windows Features on/off (can just run appwiz.cpl instead of drilling through control panel). Users of 8.1 that may be looking for this also, I think it's under a sub category for Legacy components or something like that.