Qualitrol 118 ITM Series Instruction Manual page 18

Setup Software
Click "Finish" on the next screen completing the driver installation. Figure 7
Figure 7
The windows file usbser.sys needs to be in the Windows\System32\Drivers folder (it usually
is) in order to install the USB drive. If the install program says it can't find the driver file, you
will need to search the computer to find it and copy it to Windows\System32\Driver folder
and repeat the process above.
Once the driver is successfully installed you must find what communication port number was
assigned so that when you start the ITM Configuration program you can enter the correct
communication port number.
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