Hello,

I'm trying to use C# as a script language for my .NET application.
Users able to write a method (say, Foo(Myclass parameter))
Then in run time I'm wrapping this method into namespace code, compile into
assembly signed with special key and execute.

Here is a problem - I'd like to apply some restrictions on user's code.
I.e. "Internet" set of permissions.

But it doesn't work. When I create code group for this special key, any
permission set besides "Full trust" gives me
"Security error". Even "Everything" set. I have "This policy level"
checkbox in Code Group properties dialog checked (if it not checked then
compiled assembly got all permissions from main application)
So, is it possible at all? Am I doing something wrong or may be just don't
understand something about security model?

Please, help!

Here is code snippet

      CodeDomProvider provider = new CSharpCodeProvider();
      ICodeCompiler compiler = provider.CreateCompiler();
      CompilerParameters compilerParams = new CompilerParameters();
      compilerParams.GenerateInMemory = false;
      compilerParams.ReferencedAssemblies.Add("System.dll");

compilerParams.ReferencedAssemblies.Add(Path.Combine(Application.StartupPath
, "MyCompany.MyFramework.dll"));

      string code = "[assembly: AssemblyKeyName(\"MyKey\")]";
      code += myNamespaceAndMethodText;

      CompilerResults results =
compiler.CompileAssemblyFromSource(compilerParams, code);
      object o = results.CompiledAssembly.CreateInstance("MyClass", true);

//this is where Security exception throws:
      object retVal = o.GetType().InvokeMember("Foo", new object[]
{myClassInstance});

regards,
Ken