Apache help

[Domo]

Hoping someone can help.
Windows 2008 server running web app which is listening on port 80.
Now installing additional app which uses Apache and is also wanting to use port 80 but cannot as it's already in use.

What should I do? And you've guessed right - I don't know much about ports etc - just following instructions!

So I guess the question is can I bind Apache to a different port - and if so how will that effect the application software?

Thanks!

 

[Domo]

Thanks Craig. I wasn't expecting a response this evening (or is it morning). Either way I'll give it a go now.
I did try to determine exactly what it is using port 80 via netstat but it simply reads "Can not obtain ownership information". Will have a hunt around.

I'll let you know how it goes, or I'll be back for more help!