Does CLR (.NET) allow two applications to execute in the same execution environment?

I'm a Java dev that needs to move to .NET. My question is, does the CLR allow (easily) two or more .NET applications to run side开发者_C百科 by side on the SAME CLR?

I'm not quite sure what you're asking here but it seems like one of the following

1. Does the CLR allow the same application to run in 2 separate processes? Yes
2. Does the CLR allow the same application to run in parallel in the same process? Yes (via AppDomains)
3. Does the CLR allow for itself to be hosted several times in the same process? 2.0 and 4.0 can be hosted Side By Side in the same process.