"mike" wrote ...

I've tried to
implement (not to extend) an interface like Sheet1's.
Arrived to the member _CodeName I was in impossibility of
implementing it in my class (which, again, was
implementing (!) the Sheet1 interface) because VBA says
that "cannot use _ as the first character in variable
name".
There is any workaround? Worksheet cannot be implemented
as an interface.

I'm now not clear on what you are using as an interface: Sheet1 or "an
interface like Sheet1's"?

My interfaces are VB class modules containing just the declarations of
the properties and methods.

I've never tried implementing an interface created any other way. I
assume the Sheet1 object/class is not a VB class module containing
just member declarations, I doubt it is even a type library, so I
assume it cannot be used with the Implements statement.

Perhaps you should post your code so we can see what you are
attempting.

Jamie.

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