CHKSTATE.SYS

Used by the MemMaker memory-optimization program to track the optimization  
process.

During optimization, MemMaker adds the CHKSTATE.SYS command line to the
beginning of your CONFIG.SYS file. When the optimization process is
complete, MemMaker removes the CHKSTATE.SYS command line.

CHKSTATE.SYS is used exclusively by MemMaker.