CHKNET.EXE
(Microsoft)
Truly ancient item of networking software which used to come with Microsofts LAN Manager 2.x Enhanced Workstation software.
Recommendation :
If you are still running this piece of software, then check with your network manager as you are unlikely to still be on a LAN Manager network in 2002, and the presence of CHKNET.EXE probably means an incorrectly configured network card. CHKNET.EXE in a Win9x/ME environment can result in serious performance degradation.