Have just unintalled 6.2.4 rebooted and installed 6.3.4 after purchasing the product.
Did the activation thing, but getting this error message when opening just about any form.
We have a base set of Form objects from which all other Forms are derived. The base forms display ok, but the inherited ones don't. Even the derived Forms in the project that contains the base Forms won't open - but only display the above error.
Have tried in several solutions but the same problem.
Searched the entire solution and we don't use any Panel controls anywhere, we don't use any System.Windows.Forms namespace classes, only VWG. Perhaps it is an issue with the designer integration?
Everything worked fine until today.