QUOTE (eddy2099)
My observation is that if you want to provide ASP or ASPX support, it is best to use a Windows Server where it is well supported.
ASPX is ASP.NET based on the .NET Framework which is vastly different from ASP itself. The only similarity is that both are Microsoft Technologies.
There's an aspx beta in CPanel add-in modules. It uses MONO for the .NET engine. I've loaded it on a server recently, but haven't gotten around to trying it.
A few months back, I loaded it on a server I was about to cancel and also loaded one of the JAVA modules (Tomcat IIRC) and the web server stopped working so all I can say is BE CAREFUL!
I'm going to do some more research before trying it on an actual site. Unfortunately, after being sick for a week with some low grade flu that's going around locally, I'm too far behind to check it out for you anytime soon.
-- David