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mtrr.vxd pain in the butt...

Posted on 1997-11-25
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Last Modified: 2013-12-16
i've recently installed directx 5.0 which was downloaded from microsoft.  i now have a missing file...mtrr.vxd.  my language settings were fine. i can't load the game i was trying to access (RISK Cd-Rom)...now, my sytem crashes everytime i try and access my d: drive (IomegaZip). I have been trying to fiqure it all out and remedy without having to reformat anything.  please help.  it also seems that the missing mtrr.vxd file is nearly impossble to locate on the web.
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Question by:augustine112597
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busuka earned 100 total points
ID: 1752081
Uninstall COMPLETELY DirectX 5 and put DirectX 3 instead. It is
lengthy process.
Posted on Usenet:
----------------
Previous posts instructing how to delete DirectX5 from your system do
not -totally- remove it or let you reinstall (from scratch) any older
version of DirectX. Much more information is stored in the Win95
registry about which version is installed and other parameters/settings
relating to DirectX. The procedure outlined below allows you to totally
remove DirectX and lets you -really- reinstall it...any older version,
all the way down to DirectX1.

 Be warned: the following procedure involves deleting certain Win95
registry keys that, if done incorrectly, -could- render your nicely
running Win95 useless and you'll have to reinstall it and all your other
applications. Do the following at your own risk. I won't be held
responsible if you screw up your system. If you don't know about
"regedit" or "regback", you probably shouldn't be doing the procedure.

Using regedit, regback (included on the Win95 cd), or Norton registry
editor, back up your entire registry to a backup folder/disk. Also
backup the all files listed below. If something happens, at least you'll
have the backups to revert to.
 Win95 OSR2 users should -not- attempt this procedure. I have been told
that the registry structure of Win95 OSR2 is different than the standard
Win95 structure. I don't use, nor have any experience with Win95 OSR2 so
the following procedure does not apply to it.

 Using regedit or Norton registry editor, delete the following entries
(delete the whole key/folder):
 HKEY_LOCAL_MACHINE/Software/Microsoft/Direct3D
                                      /DirectDraw
                                      /DirectPlay
                                      /DirectX
Then using Explorer, delete the following folder:
C:\Program Files\directx

Then shut down to MS-DOS mode and delete the following files:
C:\win95\system\ddhelp.exe
               \ddraw*.*
               \dsound*.*
               \dinput*.*
               \d3d*.*
               \dplayx.dll
               \dpmodemx.dll
               \dpwsockx.dll
If you also installed the new DirectX5 control panel, delete the
following file:
C:\win95\system\directx.cpl

 If you delete DirectX 5 and reinstall an earlier version, the file
"joy.cpl" (the joystick control panel applet) will not be overwritten,
and it will not work with earlier versions of DirectX. This
is the problem that some are describing as not being able to calibrate
in Win95 because the program "flashes on, then immediately disappears".
Delete:
C:\win95\system\vjoy.vxd
               \joy.cpl

Now, restart the system and install the DirectX version of your choice.
I have successfully reinstalled DirectX 1 through DirectX 3.0b (and also
the dreaded DX50. You may also need to re-install your newest
Monster3D/R3D drivers. If you use a combo 2D/3D card like the Intergraph
Reactor, Sierra Screamin' 3D or Hercules Stingray 128/3D, then it
-seems- likely you'll have to reinstall those drivers also (I am -not-
sure of this since I have not tested these cards).

 The above procedure was created because installing DX5 introduced
severe stuttering and a performance drop in iF22 (Imagic). The only way
to restore the prior performance was by doing a full restore of Win95
(and my C: drive) from a previous backup with DirectX3.0b on it. All my
other apps performed about the same after installing DX5.
------------------

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Author Comment

by:augustine112597
ID: 1752082
will this aid me in accessing my d: (Iomega ZipDrive)...it is of the upmost importance that i be able to access this soon...(painfully soon).

i will try your solution for the removal of directx5.0 but, i doubt seriouly that i will be installing it again as it has taken a full day out of my schedule...

thank you
0
 

Author Comment

by:augustine112597
ID: 1752083
will this aid me in accessing my d: (Iomega ZipDrive)...it is of the upmost importance that i be able to access this soon...(painfully soon).

i will try your solution for the removal of directx5.0 but, i doubt seriouly that i will be installing it again as it has taken a full day out of my schedule...

thank you
0
 
LVL 7

Expert Comment

by:busuka
ID: 1752084
Don't install DX5 again ! If ZIP drive access was screwed by DX5,
removal will definitely help. If it not helped, you need to remove
ZIP drive drivers from Win95 and install it again.
In future: create separate folder/directory on your HD and keep
your registry files (SYSTEM.DAT and USER.DAT) in it once you have
stabily working system. Registry is vital part of Win95, so backup it when evereything is OK.

Good luck.
0
 

Expert Comment

by:JohnJ121097
ID: 1752085
Go to http://ftpsearch.ntnu.no, and enter "mtrr.vxd" in the
search engine.  It will point you to a site where you
can download this file.

It's 12,009 bytes.
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