QCONFIG is part of PC-DOS 6.1
Editor's Note: I cannot get QAplus to run on my P90 machine. Perhaps the P90 complexes' ID is not in QAplus. Qconfig (DOS diags) will run on my 9595-OYT. Qsystem is an OS/2 diags. QMC is supposed to be a dual OS diags.

Something different: I have been busy with the IBM XGA DMQS-files ... by obvious reasons. I need the monitor data to set the graphical environment in Linux .. this is no problem with a modern multi-sync monitor like the EIZO but is a P.I.T.A. with older multi.mode or fixed frequency monitors.

So I dived deeper into the stuff. The first thing I wrote was sort of "analyzer" tool, that helps getting the cryptic stuff sorted. No documentation available so far ... I'll do that later. I have appended the tool - I *do* know that you need this as much as another hole in the head ... and since I did not fully encode the cryptic register names it is of obscure use - so far. But I have found out much of the method DMQS' MONxxxx.DGS files work.

Some of the registers stuff is explained in the IBM_VGAXGA_TRM3.PDF starting 
at Page 25 - the DMQS stuff is starting in IBM_VGAXGA_TRM4.PDF at page 9 ...

New version posted 25 Jul 99.
This version is a bit better and I started to integrate the "online help",  which should explain a bit about the use and the parameters itself. Work is still in progress - but I wanted to show you this version already. 
   In return this "little fingerwork" should enable me to *write* new DMQS-files for other monitors ... at least I hope. Someone in the NG (you or CL) asked some time ago for new DMQS-files. From the theory it should not be too complicated, but I am still fighting with the dirty details .... :-)
   Like recalculating the pixel-values from out of micro-seconds of signal delays .... Argh ... Mathematics. And it is -of course- essential to have the signal timings for the various supported modes from the monitor. Currently I am fumbling around with some NEC technical docs to get "empirical data".

Until then it will be a bit "guesswork" and a little Voodoo to write DMQS files.

Editor's Note: Continues to improve since I first tried it in September of 1997. Create bootable DOS floppy, copy extracted files to it, boot with that disk. 

Just tried this on 25 July 99- My 9595-OYT went through the entire series of tests without a problem. Craig has continued to stomp out the few bugs that were left. This diags package is FAR better than Snooper. It's menu driven, unlike Qconfig.