Do you have any work w/ iis? If not, just disable it in Add/Remove Windows Components by uncheck "Internet Information Services (IIS)", then restart wamp. If still fail, reinstall wamp should solve the problem.
However, if you do have work w/ iis such asp scripts, so on, check my old post here:
[
forum.wampserver.com]
Have fun,
[www.jlbn.com] (testing WAMPS on Vista)[test.jlbn.com] (testing codes on Vista)Win Vista Business
Apache
2.2.4MySQL
5.2.3 F-APHP
5.2.1SSL
0.9.8DphpMyAdmin
2.10.0.2