One of my C# Winforms applications randomly displays a \"pure virtual function call\" message box. When I click on the ok button of that message box the
Are you calling an abstract function from a destructor?
Via a certain search engine: http://www.google.com/search?q=pure+virtual+function+call+c%23
Raymond has a pretty detailed response: http://blogs.msdn.com/oldnewthing/archive/2004/04/28/122037.aspx