Is MOSS API available for adding user permission under 'CentralAdministration > Application Management > Policy for Web Application'.
The SPWebApplication object has a Policies property containing a collection ofSPPolicy objects that represent the web Application Policies. You can find anexplanation including sample code for adding a policy here:msdn.microsoft.com/.../...oint.administration.sppo\licycollection.aspxOnce you've got the collection it operates the same as adding custom security toan object, but uses slightly different classes.