problems creating zap files

Hi,

I am implementing group policy on my domain and creating zap files for installing acrobat reader.

As acrobat does not comes in MSI format, I need to create a ZAP file for it in order to implement into group policy.

The problem is that, when a user install this problem, from the add/remove program, they cannot install successfully due to the installation unable to edit the registry. An error will result.

But I definitely have to allow this software to edit the registry cause it is an authorize program to install by the domain user. So, how can I make it so that the installation will be allowed to edit the registry.

Thanks in advance.