how can I turn off the DEP for adobe acrobat standard 8

Hi all,

I tried in the settings to add the adobe acrobat standard 8 for exception for DEP, but it doesn't work.

I am using Windows Vista system, and the error message accured just few weeks ago, in the past I was always able

to use Adobe Acrobat Standard 8.

Thank you in advance for your kind support and best regards,

Stroefli