I am using the .Net 2008 web application with Crystal Report 10.5. I am able to generate the PDF report in Windows 7. But when I run the application on Windows Server 2012,
Uninstall Update for Microsoft Windows(KB3102429 and KB3104002)
Control Panel –> Program & Features –> View installed updates and Search for KB3102429 and KB3104002 right click and uninstall.