Citrix Disconnection Timeout in Xenapp 6 or newer

I found this a bit of a gotcha, the Citrix polices in XenApp 6.0 for Disconnection timeouts are for XenDesktop only and do not effect XenApp.

To control the Disconnection timeout change the following key

HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\ICA-TCP
MaxDisconnectionTime

This value is to 1000th/sec so a value of 1000 = 1 second