Make sure you recompile your VCX after you edit it.
>Thanks that is what i had tried before.
>I changed the class from 'form' to 'frm' and the classloc from blank to "..\libs\base.vcx" which i took from a form based on the correct classlib.
>The form can be modified in the development environment but as soon as it instantiates in the executable is locks up the system. Any guesses?