Different ways to install WebDAV

Many of us already have Tomcat or JBoss running.

How can I:
a ) Install Tamino WebDAV under IIS or Apache without installing Tomcat.
b ) Install Tamino WebDAV into an existing Tomcat (4.1.18+). I don’t want two.
c ) Install Tamino WebDAV under the Tomcat in a JBoss installation.

Thanks!
-J