Brain Goo

IIS 6 does not come with WebDAV enabled, but you can easily look to see if it is on.

Connect to the IIS manager.
Manager -> Machine -> Web Services Extensions
Check the window at right.  If WebDAV is not enabled, it should look like this:

If your IIS manager shows it as “Allowed”, you can disable it by [...]

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From Microsoft knowledgebase article http://support.microsoft.com/kb/298444
To update the group policy, run Gpupdate.exe from a cmd window.  This is refresh any changes in the Group Policy as they apply to that machine.  Run Gpupdate.exe /Force from a cmd window in order to force a full refresh of the Group Policy.
You have to check Event Log -> Application [...]

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