tanfwc

This plugin prevent WordPress from rewriting htaccess or web.config to prevent unintended files changes

Block Permalink Rewriting

This plugin prevent WordPress from rewriting htaccess or web.config to prevent unintended files changes

Eric Mann

READ THE FAQ BEFORE UPGRADING TO VERSION 1.1!!!
You can add a special link through which users can register and have a particular user level/role applied by default.
Need to separate people into multiple categories? Now you can automate the filtering process and save yourself time.

RegLevel

Set an alternate registration URL for a subset of users who need a different role on registration.

Block Permalink Rewriting vs RegLevel