How can I make sure my C# classes will interoperate with other .Net languages?

86.

add the [assembly: CLSCompliant (false)] global attribute to your C# source files

add the [assembly: CLSCompliant (true)] global attribute to your C# source files

add the [assembly: CLSCompliant ] global attribute to your C# source files

add the [ CLSCompliant (true)] global attribute to your C# source files

add the [Namespace: CLSCompliant (true)] global attribute to your C# source files

CLS(Common Language Subset) takes care of compiling to such a Intermediate language which can be run with all the languages to maintain interoperabilty.