In Vista Business SP1, v275 i have the following key:
in:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server]
There is a key named: [fSingleSessionPerUser] and it is set to [1]
I don't know if this helps...bus Business is "born" with RDP - so it might be a good source for spotting changes.
If you don't have the key try and make it and set it to 0
That should disable the Single session per user configuration/limit.
Zoso.
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Vista PC: Quadcore, 8GB RAM, Geforce8800ultra, WD Raptor raid0 array, VistaOS-64.
Vista MC: DualCore, 2GB RAM, ATIx1650pro, Seagate 400GBES, VistaOS-32
Vista Laptop: HP6715B, DualCore T60, 160GB, 2GB RAM, VistaOS-64