An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0
CertSrv HTTP Error 500.19 Windows 2008 64 Bit - IT World | Technology Site | Exchange | system | office 365 | vmware | veeam | azure | Windows Server | CertSrv
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HTTP Error 500.19 - Internal Server Error in IIS Express? - Stack Overflow