I'm having the same problems w/ regedit and cmd exe files. I wasn't aware of the problem until I was attempting to reload Trend Micro Internet Security 2009 and tech support asked me to start/run/regedit. When nothing happened I began to research. I've followed this and other threads and have downloaded and run everything noted in "8-steps" and Combofix. Things seem to be better, but I thought someone should take a look at the log files. I can't seem to locate the log file from SuperAntiSpyware.