Every time I boot up Outlook this window appears could you give me any hints. Thanks in advance.:wave: "The add-in "C:\Program Files\McAfee\Managed VirusScan\VScan\ScanOTLK.200..." could not be installed or loaded. The problem may be resolved by using Detect and Repair on the Help menu." Here's an update. I looked around the add-ins window and I found an extra exchange scan add-in I unchecked the box and the error message disappeared. The problem maybe fixed, but I was wondering what the problem really was? I'm just curious.