XenDesktop 7 Port Redirection

Looks like Citrix pulled a fast one on us. The included legacy policies for COM port redirection do not work with XenDesktop 7. You’ll note that the policy details state they control settings for XenApp 6/6.5 whether this is correct or not. Support wasn’t able to comment on this.

End result, you enable these policies and apply them and they do nothing. You’ll have to setup registry keys on your app servers to enable the VDA to pass COM/LPT client connections. The keys you’ll need to create are as follows, all DWORDs.

HKLM\Software\Citrix\GroupPolicy\Defaults\Deprecated\
Description: Allow (prohibit) COM port redirection
DWORD: AllowComPortRedirection
Value: 1

HKLM\Software\Citrix\GroupPolicy\Defaults\Deprecated\
Description: Allow (prohibit) LPT port redirection
DWORD: AllowLptPortRedirection
Value: 1

HKLM\Software\Citrix\GroupPolicy\Defaults\Deprecated\
Description: Automatically connect COM ports from the client
DWORD: AutoConnectClientComPorts
Value: 1

HKLM\Software\Citrix\GroupPolicy\Defaults\Deprecated\
Description: Automatically connect LPT ports from the client
DWORD: AutoConnectClientLptPorts
Value: 1