ExtendedBorders issue

Hi, I'm testing Alphacontrols v8.43 in Delphi XE and Win8 and want to report an issue i have found.

I'm using 2 forms. In form1 i call and show form2, but when i focus form1 again and try minimize form2 with a button like this:

Form2.WindowState:=wsMinimized;

I get an Access violation.

If I disable ExtendedBorders the program works well.

Hope it could help you to keep improving Alphacontrols.

Greetings.