Firstly, wamp is for development purpose only, not for bussiness; your boss should know that.
Secondly, I have server 2003 but not install wamp on it, but as far as I know, server 2003 always check for permission even just shutting down. My best guess it's nature of server 2003; however, if you find something different or solution for it, post back here.
Hope this help,
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