Try opening windows explorer (WinKey + E), then click the search button in the toolbar at the top.
and see if there is a NoFind
option. Make sure its set to 0, or just delete it. Also, if you installed windows desktop search, uninstall it by running this command:
also, try re-registering... (you can skip jscript.dll since you already did that one)
And reinstalling the srchasst.inf
file might work.. IT should be located in C:\windows\inf - just right-click >> install
Last thing, open up TweakUI and goto the desktop tab, check the box for "Search results".