DAP will work in a subdomain installation.

So http://members.yoursite.com will work.
But http://yoursite.com/members will NOT work.

You need to be able to access dap files like this:

http://members.yoursite.com/dap/siteroot.php
http://members.yoursite.com/dap/phpinfo.php

This wont work:
http://yoursite.com/members/dap/siteroot.php
http://yoursite.com/members/dap/phpinfo.php

You can have your Wordpress blog in a subfolder. That's not a problem.
For ex.. the following will work.
http://members.yoursite.com/blog
http://yoursite.com/blog
http://yoursite.com/wordpress
http://members.yoursite.com/wordpress

The DAP LiveLinks plugin needed to protect WP content, needs to be installed under each wordpress blog (/wp-content/plugins folder).

Pls see the solution F in this document for more on subdomain / add-on domain installation tips:
http://www.digitalaccesspass.com/doc/plugin-errors/

Pls see this document for more on 'protecting multiple blogs on a single domain':
http://www.digitalaccesspass.com/doc...a-single-site/

DAP will NOT work in a subdirectory installation.