Boot other ansert was god, put just to add my "Gris de sel"

When you déclare your variable as

Dim MyProperty as MyFormClass

You shoud see the name in the listbox when it open.

If not, your reference don't woks,

Just to be sure you could go see your object in the object Browser (F2).

You could declare your variable as

Dim MyProperty as MyServer.MyFormClass

And you could direcly instiance your object by using :
Dim MyProperty as new MyFormClass
Or
Dim MyProperty as new MyServer.MyFormClass