How to have separated enabled modules in multisite based on Domain Access? I have installed 'Domain Access' module to handle some sub-domains on a multisite installation based on Drupal 7.

This module share users, nodes and modules. But I want to have separated modules enabled on each sub-domain. But it seems if I enable a module it will be accessible on all the sub-domains.

Is the any way to bypass it? Sharing users and nodes are good points of this module and I need them but sharing modules ... no.
It's been a year or two since I have used the Domain Access module on a site, but I don't think this is possible.

Domain Access runs all of the affiliate sites out of the same database, so there is a single {system} table, which is where all of the module info it.  Essentially, the module provides some content access rules based on domain (ie, node_access() based controls), along some helpers for other site-specific tasks and integration with other modules.  In the end, though, you still have a single database which means you have a single site.