We've had a couple of support questions on this recently so I thought I'd post a comment for the broader user community.
Thanks for using WindowZones!
-Allen
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Issue:
You've installed WindowZones and now are having a number of problems. Some applications will not launch and you cannot get some processes back into the Admin Zone.
Solution:
You may have moved the process explorer.exe to the Safe Zone. Explorer.exe, also known as Windows Explorer, File Explorer, or Windows shell, is used by Windows XP in a number of different ways. By placing explorer.exe into the Safe Zone, you will substantially increase your security but potentially at the cost of usability.
If you are having problems completing certain tasks after installing WindowZones and explorer.exe is in the Safe Zone, move it back to the Admin Zone and the problems will likely go away.