Why does the .net world not have application servers like the Java world?

Question

I know about IIS being the web/application server. Why not have full fledge enterprise application servers like Web Logic / Tomcat / JBoss that are so scalable like they have in Java world.

EDIT1: I am not a Java developer myself. I called those servers only because "scalable and configurable and optimized" are the buzz words associated with them in most places I read about them. Look at this question on stack overflow for example. I am not jealous, just curious

Answer 1

Mostly because the Java world tries to be vendor independant, and platform independant it needs a coherent specification and execution environment for server side development - and that ended up beeing j2ee.

.NET on the other hand is all Microsoft - so they can provide the whole stack. Windows itself , libraries , frameworks etc. (IIS,WCF,COM to mention a few) is really the .NET version of a j2ee server.