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Conference noted::windows95

Title:Microsoft Windows 95 ("Chicago")
Notice:Please read topics 1 to 22 before writing anything
Moderator:EEMELI::BACKSTROM
Created:Mon Nov 14 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2958
Total number of notes:19968

2769.0. "dmhkey performs illegal operation" by IVOSS1::NGUYEN_D () Wed Jan 29 1997 15:26

    Hi,
      
       I recently installed Windows 95 Plus on a Pentium 133.  For some
    strang reseason, I keep getting an illegal operation message every time
    I start Windows 95.  The message indicate that "dmhkey performs illegal
    operation".  Does anyone ever have this problem?  And anyone knows what
    "dmhkey" is for?  Thanks very much.
    
    Dang
T.RTitleUserPersonal
Name		DateLines
2769.1skylab.zko.dec.com::FISHERGravity: Not just a good idea. It's the law!Wed Jan 29 1997 16:366
Hmmm.  Isn't dmhkey Diamond's "In Control Tools" monitor?  Do you have a
Diamond video card?  Did you have the In Control Tools running with Win3.1 (or
whichever) before you upgraded?  Conceivably, the In Control stuff you have is
not usable on Win95.  They have a number of upgraded drivers on their web site.

Burns
2769.2LEFTY::CWILLIAMSCD or not CD, that's the questionWed Jan 29 1997 17:1516
    Which Pentium 133? 
    
    You will get -exactly- this problem if you add on a Diamond card to a
    PC with an on-board video chip, whether W95 reports it as disabled or
    not.
    
    DMHKEY is part of the Diamond Incontrol tools.
    
    I had to find a new machine to install the Video card into - Could not
    make it work otherwise. 
    
    De-install the Diamond tools, and install just the driver, not the
    InControl Tools. That may help. 
    
    CHris
2769.3Diamond Stealth card it is!IVOSS1::NGUYEN_DWed Jan 29 1997 17:3713
    Hi,
    
       Thanks very much for the tips.  The machine that has the problem is
    an Intel P133 with Diamond Stealth card.  I also
    have an Intel P200, also with Diamond Stealth card.  Both machine have
    pretty much the same configurations, runing Windows 95 Plus.  However,
    the P200 seems to be working fine.  Haven't had any problem with
    "dmhkey".  Can someone explain?  By the way, is the size of the monitor
    an issue?  The P200 has the Panasonic 17" monitor and the P133 has the
    Panasonic 15" monitor.  Thanks again.
    
    
    Dang
2769.4skylab.zko.dec.com::FISHERGravity: Not just a good idea. It's the law!Thu Jan 30 1997 15:5813
The size of the monitor is almost surely not an issue.

As .2 says, check to see if the new motherboard has a built-in video adaptor. 
If so, see if it can be disabled with a jumper on the motherboard.  Chris seems
to indicate that even that might not be good enough.

Diamond has frequently had the reputation of having somewhat flaky software,
but for any software so close to the h/w it is easily possible to act
differently depending on the exact motherboard speed and configuration.  I'd
try what Chris suggested:  Try to either remove only the in-control tools or if
necessary, remove the whole thing and re-install only the driver w/o the tools.

Burns
2769.5skylab.zko.dec.com::FISHERGravity: Not just a good idea. It's the law!Fri Jan 31 1997 15:514
BTW, I discovered last night that you can stop "In Control Tools" from running
by simply removing it from the Startup menu in Win95.

Burns