i know php runs on apache and asp runs on iis
is it possible to run these two toegether on the same server for a webiste?
the reason that im asking this is because of that my website is currently running on php and linux apache.
i need to add this stuff that my friend can help me with. but he only knows how to do it in asp..

yes, you can do it on a Windows server. If you want to run it on Linux, I think you need to purchase a third party software for ASP. http://www.sun.com/software/chilisoft/

i know php runs on apache and asp runs on iis
is it possible to run these two toegether on the same server for a webiste?
the reason that im asking this is because of that my website is currently running on php and linux apache.
i need to add this stuff that my friend can help me with. but he only knows how to do it in asp..
There isn't going to be an easy way to do this with your current setup. ASP is a proprietary technology, and while it is possible to run it in linux, I personally would avoid trying it in a production environment.
You could switch to a host running windows/iis, as most have PHP also setup on their servers.

Both PHP and ASP are supported in both Linux/Apache and Windows/IIS. The ASP solution on Windows seems to be more reliable and stable than that on Linux. If you actually mean ASP.NET, then this is only available on Windows. In addition to Chillisoft mentioned above, there is Apache ASP, an implementation of ASP in Perl. My experience with Apache ASP has shown that scripts written for Microsoft's ASP implementation rarely work out of the box. If you are writing new scripts from scratch then you may be OK.
If you need ASP I would recommend switching to Windows/IIS based hosting.