Prevent WebDAV folder to appear in Windows Network Places automatically?

I have the WebDAV and SVN installed in Apache and it works fine. The issue is that the WebDAV repository/folder will be added into Windows Network Places automatically after I open/edit a file (with Microsoft Office) directly. How to disable it?

This doesn’t happen in SharePoint, so I’m guessing it must be a configuration somewhere, but couldn’t figure out.

Any idea? Thanks.