Cannot close Serial port socket on Server 2008, Can on XP

Question

As per the subject - running the same code using the same hardware, but different OS (Server 2008 Std. NOT XP Pro)will not work!
It's all very odd... The port opens fine but will not close using SerialPort.close(), thereby causing problems the next time the port is opened (PortInUseException).
Has anyone here experienced this before? Any suggestions as to where the problem may lie?
Edited by: wizzkidd on Jan 19, 2010 7:46 AM - More descriptive title

Answer 1

I have a serial port monitor open on both machines; it shows that the connection is still open (on Server 2008), even after the following is run:
     public void closePort() {
          if (serialPort != null) {
               serialPort.close();
               Console.print("Closed port: "       + "(" + commPort + ")");
          else {
               Console.print("Port is still open: " + "(" + commPort + ")");
     }However, on XP, the connection is closed properly.
Upon failure to close the port, the code has already been run, however, no exception is thrown.
Edited by: wizzkidd on Jan 19, 2010 7:56 AM