If I can ever find time to work on some of my "wishlist" projects, I'll definitely assemble a test environment and report my findings here in the forum. In my Windows IIS example, which is actually our public library's web-based card catalog search application, using Apache as an http server proxy is working extremely well. If you use www.netcraft.com to try to see what the server is running, it'll tell you that it is Apache on Linux, when in fact the actual web app is running in MS's "IIS" on a Windows 2000 box that resides on a private internal network. In setting this up, I just followed the basic Apache proxy module principles documented at
http://httpd.apache.org/docs-2.0/mod/mod_proxy.html and it all worked as advertised. I'll bet that Domino's web server will proxy thru Apache just fine too... I can't seem to think of any reason why it shouldn't.