We use "Copy file.prn to \tsclient\com1" to print from a TS session to a locally attached serial printer.
This works fine from Windows XP, but when trying it from a Windows 7 client computer, we get an "Access is denied" error message.
And yes, the check box of COM port is selected on the Local Resources tab of the Remote Desktop Connection client.
Any pointers? Has anyone even managed to do this successfully?