I have shared one folder on Windows 2008 server and would like to control what files are uploaded to it. I would like to let certain files to be uploaded, for example only *.doc files. Is that possible?
You want to look at using File Server Resource Manager (FSRM) File Screen. With this you can restrict which file formats (by extension) are allowed on your server. FSRM can also provide reporting, notification and alerts based on your rules.