AntiVirus System Pro wont let me open anything but firefox

When i use the malware it wont open after i finish the install. and Hijack this wont download either

Please download exeHelper from one of the two links.
Link 1
Link 2

• Double-click on exeHelper.com or exeHelper.scr to run the fix.
  
• A black window should pop up, press any key to close once the fix is completed.
  
• Post the contents of log.txt (Will be created in the directory where you ran exeHelper.com)
  

Note: If the window shows a message that says "Error deleting file", please re-run the program before posting a log - and post the two logs together (they will both be in the one file).