Why not just run the Converter on the Server and use it to access the PCs? If you do this and specify a PC without the Converter, the Converter attempts to go out and install the the Converter Agent on the PC. Alternatively you can just install the Converter agent manually. Then, you select the remote machine as a source and a local folder as a destination.
In the location field use the path
servername \ sharename instead of a network map.
Also, make sure that the log-in for the share is set properly.