'attribute': cannot assign values to this attribute
A syntax error was found where an attempt was made to assign a value to an attribute.
The following sample generates C3346:
#include <unknwn.h> [module(name="xx")]; [object, helpstringdll="xx.dll", uuid("00000000-0000-0000-0000-000000000001")] // C3346, try helpstringdll("xx.dll") __interface IMyI { HRESULT xx(); }; void main(){ }