Hi there,
VB.Net 2003 Window application.

In the Solution Explorer While trying to maintain existing FORMs using VIEW DESIGNER it generated the error message listed below.

Error Message Quotation:
Property accessor 'IsMdiContainer' on object 'System.Windows.Forms.Design.FormDocumentDesigner' threw the following exception:'Specified cast is not valid.'


I need your help. Could someone please list down the procedure that I need to do manually to fix the problem.

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Thank you very much.

Have a good day.

Cheers,
Lennie