Possible to import a C# application into .ASP?

Question

I made an application in c# and I want to load
that into a website that you can use, is it
possible to add it to .ASP without converting
everything by hand to .ASP?

Like you look at JAVA you can make a application
then turn it into a java applet... than you can
add it to a website... can I do the same with my
C# application?