Hi,

I created one dll named test.dll using visual basic and registered using regsvr32.exe.
I used this dll in asp file as followed

set cls = server.createobject("test.class1")
and iam calling the methods using cls.methodname.

it is working fine. This is nothing COM

my doubt is what are queryInterface, AddRef and Release HOw do i use these in my applications.

If i were correct These methods will be automatically called by iis when create instance using server.createobject.
Is it possible to work directly with Queryinterface.

Thanks in advance.