Finding & Removing Hidden COM ports for Non-connected Devices in Windows XP

[1] http://www.rttycontesting.com/lagniappe/removehiddencomports.html


1. Right click on My Computer then go to Properties.
2. When the System Properties dialog window opens, click on the Advanced tab then click on the Environment Variables button
3. In the Environment Variables window, under System variables, click the New button.
4. In the New System Variable dialog box, enter devmgr_show_nonpresent_devices as the Variable name, and enter 1 as the Variable value, then click OK
5. You will see your new entry in the System variables field.  Click OK