Download RegSrch.zip from here:http://billsway.com/vbspage/vbsfiles/RegSrch.zip
Unzip it and then double-click on the regsrch.vbs file. When it runs it will prompt you for a string to search for. Enter blank.exe into that field and press enter.
It will run for a while silently and then create a report. Please paste the contents of that report into a reply to this topic.
*Note: If you have Norton script blocking installed, disable it or allow the script to run or this tool won't work!