Client hardware access

Use this policy to specify maximum number of serial ports supported by the client platform.

Also, use this policy to enable and restrict the remote application or desktop's access to the client's serial, USB, and parallel ports. This allows the server to use locally attached hardware.

Troubleshooting:
Remote PDA synchronization uses "virtual COM ports". These are serial port connections that are routed through USB connections. It is necessary to enable serial port access to use PDA synchronization for this reason.

Maximum serial ports

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Serial Port
Value Name	MaxPort
Value Type	REG_SZ
Default Value

Map serial ports

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Serial Port
Value Name	COMAllowed
Value Type	REG_SZ
Default Value	true,false
True Value	true,false
False Value	false

Allow PDA synchronization

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Serial Port
Value Name	VirtualCOMPortEmulation
Value Type	REG_SZ
Default Value	true,false
True Value	true,false
False Value	false

Map parallel ports

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Printing
Value Name	CPMAllowed
Value Type	REG_SZ
Default Value	true,false
True Value	true,false
False Value	false