Question : Apache + IIS problems

I have a Win 2003 server with 2 IP addresses x.x.x.100 x.x.x.101.  I have an Apache based web app running on SSL 443 (apache is not listening on port 80), and a local web site running on IIS (port 80).

Apache listening to HTTPS 443 on x.x.x.100
IIS listening to HTTP 80 on x.x.x.100 and x.x.x.101

I need to add HTTPS 443 support to my IIS site on x.x.x.101.

I configured Apache to ignore the x.x.x.101 IP and only listen to the .100
I configured IIS to listen for HTTPS 443 on x.x.x.101 ONLY

I can’t start my web site, when I try to start it I am told that it can not start because a file is already in use, if I change the HTTPS port to 4443 it works fine.

I have discovered that the problem is both apache and IIS are trying to listening to port 443 on 0.0.0.0.

Any ideas on how I would prevent IIS  (or Apache) from listening to 0.0.0.0

Answer : Apache + IIS problems

It looks like your ListenOnlyList might be having problems ...
Check out this page my MS ... http://support.microsoft.com/default.aspx?scid=kb;en-us;890015
It looks like you might have to manually modify the registry to get rid of any "incorrect" references for the ListenOnlyList option so that Apache can listen to the same ports on the other IP address.