Please see my comment to the question.
I don't clearly understand why would you really need what you need, but I would suggest to think at one alternative: using "regular" VB.NET and C# compilers available on your host system. They are available simply because you are using ASP.NET, which, in turn, requires installation of .NET on the host computer (well, or Mono). In all cases, at least those two compilers are always available, at least because .NET should support CodeDOM. So, they can be used indirectly, via CodeDOM. Please see:
http://msdn.microsoft.com/en-us/library/y2k85ax6%28v=vs.110%29.aspx[
^],
http://msdn.microsoft.com/en-us/library/system.codedom%28v=vs.110%29.aspx[
^].
—SA