Sure.
If you are using the oacs-dav package to provide WebDav services you should just need to add something like this.
My Computer -> Tools -> Map Network Drive
Click Sign up for online storage or connect to a network server. Click Next. Select Choose another network location and click Next.IN the Internet or network address box put
http://yoursite.com/dav/...webdav...path
File storage, if it has webdav available has a URL for the webdav access at the bottom of the page. You can copy and paste the URL here.
From there you will most likely be asked to authenticate with your OpenACS email/username and password. After that the webdav folder should open up to show your files.
