WhiteHEAT Changing COM port mapping under Win 98


NOTE: This information is obsolete. Please refer to the following guide for updated instructions. http://www.connecttech.com/sub/Support/install_guides/s_install_template.asp?g_name=s_install_WH-98.htm

 

Date: May 21, 1999
KDB Number: kdb-240
Revision: 0.01
Author: AES
Distribution: External

By default the Windows 98 driver for the WhiteHEAT USB start the serial ports at the first available COM port starting at COM5 and install the ports in subsequent free COM slots. Sometimes it may be necessary to change the COM port numbers to something else. The following describes how to do this.

After the WhiteHEAT has been successfully installed and the driver has added the additional ports into the Device Manager, you will need to take the following steps.

  1. Confirm the COM port you want to move the WhiteHEAT to does not exist by looking in the following
    Start->Settings->Control Panel->System->Device Manager->Ports (COM & LPT)
  2. Run REGEDIT.
  3. Search for the WhiteHEAT ports entries in the registry path as follows:
    My Computer\HKEY_LOCAL_MACHINE\Enum\CONNECTTECH\CTIWH4\DEV_xPORTy
    (Where x is the WhiteHEAT box number and y is the port number, 0 based)
  4. You will need to change all references to the existing COM port to the new one you have chosen. The keys that need to be changed are:
    FriendlyName
    PortName
  5. Perform this modification to each port you wish to move, as described in step 3.
  6. Exit REGEDIT after the modifications are complete. This will save the new registry changes.
  7. Now you should see in the control panel (as described in step 1) the COM ports in their new locations. Applications will now associate the new COM numbers with the appropriate ports.

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