What is viewmgr.exe?
From what I have been able to gather, it’s a component of something called “Viewpoint Media Player” that most people feel is some sort of malware. It is apparently installed when you download and install recent versions of AOL Instant Messenger.
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The consensus seems to be that you can uninstall Viewpoint Media Player if you want to. Go to Control Panel, Add/Remove Programs, select it and hit Remove. It seems that the uninstall is less than complete, however, and you’ll probably still need to go looking for the files – search for viewmgr.exe and delete it. (If you can’t delete it, you may need to fire up Task Manager and end the task first: right click on the clock in your task bar, click on Task Manager, locate viewmgr.exe in the Processes tab, right click on it and select End Process. Now you should be able to delete the file.)
Important Update: Much more information on this topic, including comments from a Viewpoint representative, can now be found in the article Is Viewpoint Spyware?.