This icon actually takes you to the program properties dialog boxes when you right click on them and click the Properties command. Sometimes an errant program can wipe out these special icons. Here's what you need to do to get them back:
- Open the Registry Editor (regedt32) from the Run command.
- Navigate to the following Registry key:HKEY LOCAL MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Desktop \ NameSpace
- Once you're there, click the Edit menu, point to New and click Key.
- Change the name of the key to (make sure you include the curly brackets):{00020D75-0000-0000-C000-000000000046}
- Close the Registry editor and right click on your desktop and click Refresh. You should see the Outlook icon appear on your desktop again.