forward proxy + variable settings

[Mythili Mudlapur <mythili.sprabhu@xxxxxxxxx>]

Hi

    I am fairly new to using apache proxy. I am trying to use apache as a forward proxy. I have fixed clients using this proxy and would like to have variable settings 

(different output filters for pages fetched) for these clients. I understand that if apache is used as reverse proxy, it is possible with the vhost options.

Could someone confirm if it is possible at all to do this with some configuration files? Or if there is a way to do this, could you please provide me some pointers?

Thanks

M