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Compatibility options grayed out Win7 64 bit

I'm trying to force MMC to open in 32 bit mode so I can have access to the exchange features in the AD. I know it can be done from a command prompt (mmc /32) but you always have to add the AD plugin and I'd like to be able to click it and have it ready right away.

Is there a reg setting I can edit or create in order to be able to change the compatibility with this? I've read that it "can't be changed" in 64 bit. I don't buy that. Cause if it can be run from a cmd prompt, it should be able to be changed at will. Correct?
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1 Solution
beavenscAuthor Commented:
I never seen that as an option to pic when installing. How would you do that? have to I hope there is a better alternative.
beavenscAuthor Commented:
Yeah....tell me something I don't know. Ya know to do what you're explaining?

Hmmm...I bet I could PAY ms to be able to have this ability. But to be able to do it right out of the box, or actually find a way to do it...yeah I ain't holding my breath.
By viewing cpanels answer history he is not serious. He told people to "delete system32" in most of his answers.

On topic:
Wouldn't editing the relevant shortcuts to mmc accomplish what you want? I don't know of any registry setting that will do the trick.
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beavenscAuthor Commented:
Ah..yeah...this is for a laptop so I can run RSAT and have the Exchange tabs in AD.
Whats weird is Exchange System Manager works just fine in 64 bit. So I can't understand why the damned tabs won't show up.
beavenscAuthor Commented:
h4mi...I'm not sure what you mean. How could I edit the shortcut, to change how the target reacts?
beavenscAuthor Commented:
I found this on another site, but the Layer Registry isn't listed for me. And adding it did nothing. I didn't restart after it, but that shouldn't have mattered.



- open REGEDIT
- goto "HKEY_CURRENT_USER\Software\Microsoft\Windows
- create a new String Value
- name or rename it as the application full path e.g. " C:\Program
Files\Internet Explorer\iexplore.exe " to modify compatibilty "layer"
of Internet Explorer, normally with Com tab obscured because it is
part of the system, the actual Windows Vista version.
- right click on the new String and select Modify
- type RUNASADMIN in the Value Data row; this will classify the
program to be run as Administrator.This allows you to bypass the GUI mode of settings editing. Instead u
edit settings by registry. And of course you can ignore the advanced
properties of the shortcut. Better launch the program in default
administrator mode !

I've used it for Internet Explorer (iexplore.exe) that is part of the

A desktop shortcut can be set to run as administrative mode.
But, if i launch the IE7 browser from a URL or Favorite link this won't
work and Windows Vista will run it in User Mode... UNLESS I'VE CHANGED
THOSE OPTIONS WITH REGEDIT. To run regedit go to Start Menu and then
"Run..." type REGEDIT.EXE or REGEDIT.

Other Options and some examples.
Always in the key called HKEY_CURRENT_USER\Software\Microsoft\Windows
NT\CurrentVersion\AppCompatFlags\Layers u can add more variables:

RUNASADMIN: i've just told, Run That Program As Administrator
256COLOR: Run the program in 256 colors;
640X480: add this value to run a game or other application in a lower
DISABLETHEMES: add it to disable Windows visual themes 4 that app;
DISABLEDWM: Disabled desktop composition;
HIGHDPIAWARE: Disable display scaling on high DPI settings;

ELEVATECREATEPROCESS: i dunno, unknown function.

COMPATIBILITY VALUES (don't use'em together, only one per app !):
WIN95: to add Windows 95 compatibilty mode;
WIN98: to add Windows Millennium or 98 compatibility mode;
NT4SP5: NT 4.0 Service Pack Five Com Mode;
WIN2000: type it to add Windows 2K compatibility mode;
WINXPSP2: Windows XP Service Pack 2 compatibility mode;
WINSRV03SP1: Windows Server 2003 SP 1 com mode.

Windows also creates these option strings when you change Compatibilty
Settings in the properties of the selected executable (GUI mode, Not
Regedit Mode).

What I mean is simply that you make a shortcut with the target "c:\windows\system32\mmc.exe /32". I'm sorry if it's not much help.
beavenscAuthor Commented:
That didn't work. But gave me a slight idea. Do you think that (adding mmc /32 to an existing reg file) could work as some sort of reg edit?
beavenscAuthor Commented:
Damn....I even tried creating a shortcut, editing it to: C:\Windows\System32\mmc.exe /32
but that failed.
beavenscAuthor Commented:
After taking my brain out, kicking it around the office a bit, and then washing it off before reinstalling it into my empty head, I was able to think of a solution that actually worked!

I simply right clicked the actual Active Directory U&C icon in the Administrative Tools folder, properties> and added /32 at the end of it's target location.

And......done. The damned Exchange tabs are there.

Such an easy fix and yet I kept not seeing it. ...until now.
But thanks h4mi for tryin to help me out. Maybe this can help someone else out who may need it.
Glad you got i sorted.
beavenscAuthor Commented:
It was the only solution available in the thread. And it actually solved my problem.
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