A while back I wrote a .NET wrapper around Microsoft’s Background Intelligent Transfer Service. Well, truthfully, I adapted and enhanced one I found online. But the point it this – BITS works great when trying to send files up from a client to a server b/c of the built in retry and the network activity throttle. Of course, that throttle can be a big pain when you want files to transmit quickly, but BITS supports the idea of job priorities so you ratchet up the priority to increase transmission speeds. However, what if you want to overwrite the file you are transmitting. Maybe the last one was a mistake. Maybe you’re just testing with the same data over and over. Whatever, there are sometimes valid reasons to overwrite transmitted files. BITS doesn’t want you to do this, and the process of turning it on is NOT a simple checkbox inside of IIS on your web server.
Here are the steps:
1. Open a Command Prompt session on your server.
2. Change to your X :\InetPub\AdminScripts folder, where X is the drive that you specified for your IIS documents.
3. Enter one of the following commands:
To enable overwrites:
CSCRIPT.EXE ADSUTIL.VBS SET w3svc/1/root/BITSAllowOverwrites 1
Restart IIS
To disable overwrites:
CSCRIPT.EXE ADSUTIL.VBS SET w3svc/1/root/BITSAllowOverwrites 0
Restart IIS
ADSUTIL.VBS reports back the new value for that property if the command completes successfully.
Here is more information on the ADSUTIL.VBS tool:
240225 Description of Adsutil and MetaEdit Utilities Used to Modify the Metabase
http://support.microsoft.com/default.aspx?scid=kb;EN-US;240225