Hello Peter

Thank you for your answer.

I tried this with no success ??
1) copy myclasses to h:
2) rename myclasses
same with superclasses

3) opening a form and point to the new location ??
Error: can't find myclasses
i point to h:...myclasses
Error: Textbox can't be found in myclasses


problem:
the base classes can't be found ???

in myclasses i have
m_textbox based on textbox
m_grid based on grid ...

in superclasses i have
s_textbox based on m_textbox
s_grid based on m_grid

Same problem when working with:
Update Myclass set classloc = "h:.." where classloc = oldclassloc

Any idea ??
Best regards
Albert