Create a Shortcut to Enable/Disable Aero Transparency in Windows 7
rundll32.exe dwmApi #102
Manually Enable/Disable Aero Transparency
You can achieve the same result by right-clicking on the Desktop and choosing Personalize and then “Window Color and Appearance”
You should see the “Enable transparency” checkbox in this screen, which works immediately.
Create Aero Transparency Shortcut
Right-click anywhere and choose New \ Shortcut, and then enter in one of the following into the Location box to create the new shortcut.
Turn Aero Transparency Off
rundll32.exe dwmApi #104
Turn Aero Transparency On
rundll32.exe dwmApi #102