Question: can someone please tell me what i need so that i can see the explorer view for a library in sharepoint? it works on one machine and not another. it sometimes works on a vista client but not xp. it works in internet explorer but does not work on another machine with the same settings.

please help. wss 3.0 on windows server 2008 with vista and xp clients.

Thanks

Answer: 
It requires WebDav to be enabled on the server part, and WebClient to be running at the client. WebClient is just a service, see [this technet entry](http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/844f5e01-4b9e-4dac-897e-2a0bb33f28af.mspx?mfr=true) for specific information on how to start it.

If WebClient is already running, make sure the SharePoint site is added to the "Trusted Sites" in IE. In Vista SP1 and up, the WebClient has a private list of "Trusted Sites" [in the registry](http://sharepointsolutions.blogspot.com/2008/07/how-do-i-make-our-sharepoint-site-stop.html).
I was trying to do a quick backup of a bunch of files, and the explorer view was not working. What finally worked was mapping a network drive to the sharepoint server, and then I was able to bulk copy and paste the folders/files to my backup server. 

I don't know why MS makes so many things really difficult. But they do. But that worked for me.