.NET (C #) calls DLL in "late binding" mode

Private Void Menuitem3_Click (Object Sender, System.EventArgs E)

{

AskMBLY ASM = askMBLY.LOADFROM (@ Application.Startuppath @ "/ crystaldll.dll");

TYPE mytype = asm.gettype ("crystaldll.dllclass);

MethodInfo mi = mytype.getMethod ("OpenFRMQXSZ");

Object obj = activator.createInstance (MyTYPE);

Mi.invoke (Obj, new object [] {this});

}