I've had this error message before and just deleted my Malwarebytes and downloaded another. PROGRAM_ERROR_MISSING_FILE (2,0, mbamswissarmy.sys) When I received the same message a month or so later, I came here looking for a permanent solution. TICKETPLACE had a problem close to mine I felt so I tried TMERC solution.I was unable to download the malwarebytes as a user account. When I set the Window 7 account to administrator, I had no problem downloading the malwarebytes. After running the program I deleted the account,ran it again and everything seems fine for now. Too bad Malwarebytes wouldn't let me copy and paste the error message. A button to report the error would have been even better.