Running multiple instances of one webapp

["Jonathan A. Chase" <ch...@muohio.edu>]

On our instance of Tomcat 4.1.27 we have a webapp which we make available 
to a number of different clients, where the configuration variables 
(web.xml) are slightly different for each client.  Currently, if we have 
three clients who wish to use the app, we make three copies of it and 
updated web.xml in each copy.

Here's the question:  is there a way to configure Tomcat to use just one 
copy of the app with three different web.xml's as opposed to making three 
copies of the entire app (without running multiple instances of Tomcat)?

Jon