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Windows 7 DWM Registry Keys

Published in Windows 7 User Interface Tweaks by Steve Sinchak with 43,090 views and 4 comments

The Desktop Window Manager in Windows 7 includes some new registry keys that are different from Windows Vista.

HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM
(Default)
AlwaysHibernateThumbnails
ColorizationAfterglow
ColorizationAfterglowBalance
ColorizationBlurBalance
ColorizationColor
ColorizationColorBalance
ColorizationGlassReflectionIntensity
ColorizationOpaqueBlend
Composition
CompositionPolicy
EnableAeroPeek

Some of the settings such as ColorizationColor follow the same value format as in Windows Vista.  You can use my online calculator to determine values for those settings.

 Do you know what any of the other registry entries do such as Afterglow and BlurBalance? I will update this article once I have more time to research the new entries.

 
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Comments
Phantom
3 years ago
The Desktop Window Manager in Windows 7 includes some new registry keys that are different from Windows 7. Say what???!!!!!!!!
Steve Sinchak
3 years ago
That does not makes sense to you? :) Thx, fixed.
Rhodri
2 years ago
I think it is to do with the application bar from switching one window to another or it could be and easter egg where you "turn on" so when your cursor goes over an icon it glows (animation) as i think that is what one of the features was originally going to be ages ago (cant remember)
fx1080
2 years ago
This is what I have found some of the keys do:

AlwaysHibernateThumbnails - maybe same as "Save Taskbar thumbnail previews" from Performance Options
ColorizationAfterglowBalance – changes how bright the glass is (0 removes all color from borders)
ColorizationBlurBalance – Same thing
ColorizationColorBalance – Same thing, but slightly different
ColorizationGlassReflectionIntensity – Changes how much the glass streaks are visible in window borders
ColorizationOpaqueBlend – toggle for transparency; not as good as the “Enable transparency” button in personalization.
Composition – is dwm.exe active?
CompositionPolicy – same as Composition, but the effect is reversed.

(obvious ones not included)