Ok, I found a solution that I want to share:
1. On the Windows-PC install "haneWIN NFS Server (
http://www.hanewin.de/nfs-d.htm )
2. Rightklick the "NFS-Server" and select "start as administrator". Then got to "Exports" and edit the export-file. Insert the path to your Windows-folder where you want all recordings to be stored. Add "-public" behind it (to grant access to all machines in your network). Then close the file and press "restart the server".
3. Go to Windows-Firewall and enter new rule for incomming TCP and UDP-Access on Ports 111, 1058 and 2049 (haneWIN needs those ports)
4. Open "http://IP-of-your-TBS-MOI:9981" in your Browser (to access TVheadend). Under "Configuration / Recording" insert the follwing path for recordings: "/media/Recordings"
5. With WinSCP (or any similar Tool) SSH into the TBS MOI and edit the "etc\init.d\S99TVServer"-File. Below "#!/bin/sh" insert the following line:
mount -o nolock IP:/path /media/Recordings
(Where "IP" is the IP-Address of your Windows-PC and "path" gives the path to your designated recording-folder; don't forget the ":" behind the IP-Address!)
Restart the MOI through the webinterface.
That's it. The designated folder on your Windows-PC is mounted into the "media/Recordings"-folder on the MOI and all recordings will be stored on your Windows-PC.
Brgds,
FantasticN