I cannot open any executable files via shortcuts or directly. It all started when I tried to create a shortcut for outlook by pinning it in the start menu. Outlook works fine, but none of the program files will open. When I click on any program files I received the following error "Microsoft Office Outlook.....The command line argument is not valid. Verify the switch you are using".
I've tried running anti-virus, malware and spyware programs to no avail. The only way can launc an .exe files through the command.com window, which is how was able to run the anti-virus programs.
I've included an attachment of the log produced by HiJackThis, maybe it can help identify the problem. Please Help!!!