Mapping WebDAV server folder as a network drive will allow any application even without WebDAV support to access files on a WebDAV server.
On Windows Vista
To map a drive in Windows Explorer right click on a Computer icon and select Map Network Drive:

Note that when copying a file from local disk to mapped drive the file content is cached on a local system drive prior to submitting to server. You must have enough disk space to keep the entire file content.
On Windows XP and Windows Server 2003
While mapping a network drive on Windows Vista is quite simple and straightforward on Windows XP and 2003 it requires following preconditions to be met:
- Make sure WebClient service is running. Open Services snap-in
and find WebClient service. On Windows Server 2003 this service is disabled by
default. If the service is disabled open WebClient Properties dialog
and on General tab set Startup Type to Automatic.
Restart the computer.

-
Your WebDAV server must be located on a default port 80. Map
Network Drive wizard will fail to connect to any ports other than 80 displaying
“The network path http://server/folder/ could not be found” message. Map Network Drive feature does not support SSL / HTTPS connections.
-
Your WebDAV server must accept anonymous connections or use Integrated
Windows Authentication. Map Network Drive will fail to connect to
WebDAV servers using Basic or Digest authentication. Use NTLM or Kerberos
instead.
-
Connect to a folder on a WebDAV server rather than to the site root. The Map Network Drive wizard on Windows XP and Windows Server 2003 will fail to connect to URLs such as http://server/. Instead specify an existing folder: http://server/folder/.

The above limitations are fixed in Windows Vista Service Pack 1 Release
Candidate.
Automating Drive Mapping
A network drive can also be mapped executing 'net use' command in a command prompt:
net use * http://server/folder/