VS2010 postbuild event fails in IE11

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C#

Visual-Studio

VS2010

Hi,

I am using windows7-32bit machine,IE8 and VS 2010 console application(using Build events ->post build event -> after success build, signing the exe of that project).
it's compiling and running without any problem,.

PostBuild event:
"C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\signtool.exe" sign /f $(ProjectDir)../URCertificate.p12 /p URPASSWORD /t http://timestamp.verisign.com/scripts/timestamp.dll $(ProjectDir)bin\release\XXXXXX.exe

Problem: If I upgrade the IE8 to IE11 then the above code fails to compile because the postbuild event fails(the above timestamp couldn't reachable).

Thanks,
Rajkumar.N