Tech Note 254 Detail

COM port in use by another program.

Affected Products:

CI-6400 ScienceWorkshop 500 Interface

My computer will not recognize my interface; it keeps telling me that the COM port is in use by another program.

PASCO Solution:
Only one process/application can access the COM port at one time. Remove from the Device Manager the drivers of any devices that may have been connected to the COM port, such as mice and/or modems. Also close all programs/processes (other than DataStudio) that are used to communicate with devices that connect to the computer via the serial (RS-232) port, such as Palm Pilots and modems. Frequently, this can be done by right-clicking on the applets in the "tool tray" on the lower right side of your screen or by deleting the entry from the "Startup" directory in Windows.

Creation Date: 10/17/2001
Last Modified: 11/18/2002
Mod Summary: