Source:  LANSUP.COM

Explanation:  Another TSR (terminate-and-stay-resident) program was loaded after the LANSUP driver.

Action:  The drivers must be unloaded in reverse order, as follows:

C:\NWCLIENT\NETX /u <Enter>

C:\NWCLIENT\IPXODI /u <Enter>

C:\NWCLIENT\LANSUP /u <Enter>

Unload the TSRs; then try to unload the LANSUP driver. You can force the LANSUP driver to unload from the command line by using the /F switch after the driver name, as follows:

C:\NWCLIENT\LANSUP /f <Enter>

Use caution when using the /F switch because it could cause the system to hang.