Enable desktop composition - setting will not remain enabled

When I run portable "Oxynger KeyShield" I get this alert ...

Oxynger KeyShield can't start because Desktop Composition is disabled.
Restart Oxynger KeyShield after enabling Desktop Composition.

Desktop Composition will not remain enabled

In "Performance Options" ...
I enable check { [x] Enable desktop composition }
Apply (btn) -> OK (btn)
BUT when I reopen "Performance Options" the setting is disabled



Would appreciate any help, thank you :)

Just stumbled over my thread 6 years later.
Secure Virtual Keyboard to protect your Passwords
Also wanting to use Oxynger KeyShield 2 but cannot change services value as per ...
FIG: A

What Is Desktop Composition - How To Enable Or Disable It ?
This error alert persists . . . .
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Oxynger KeyShield 2 - System Error
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Oxynger KeyShield can't start because Desktop Composition is disabled. Restart Oxynger KeyShield after enabling Desktop Composition.
---------------------------
OK
---------------------------
I get the same "System Error" on 2 Win 7 PRO machines.
The second machine is a clean install of 7-PRO (waiting to be put into service)

Brinks tute mentions using atleast TWO methods ... ? what am I missing ?

Would appreciate any help . . . thank you