MEM.EXE walks the chain and dumps PSP data. You can walk each
PSP's FP table and count entries.  

MEM1.EXE checks the MCB chain for integrity in the event you
suspect MCB chain corruption.

FILES.EXE walks the DOS SFT table. It will dump the file name,
size, attributes, handles, and the DOS PSP owner of each file.
Mapping this PSP owner back to MEM.EXE's output, you can find
WHO owns each open file.  

H2NAME.EXE can map file handles in each PSP to the SFT
directly if you need to go the other way.
