HTTP Error 500.21 - Internal Server Error
how can solve this problem is
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Manish Kumar ChoudharyPosted Nov 22, 2014, 3:21 AM
Visit following links it might be helpful for you.
http://www.compdigitec.com/labs/2010/07/12/solving-handler-pagehandlerfactory-integrated-has-a-bad-module-managedpipelinehandler-in-asp-net-4-0/
http://www.findeen.co.uk/pagehandlerfactory-integrated.html