Not able to access dotnet DLL from PHP

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.NET

PHP

Hi,

As apart of php upgrade form 5.5 t0 7.1. I was not able to access the dotnet dll files from php dotnet class, its throwing me the below error.

PHP Fatal error: Uncaught com_exception: Failed to instantiate .Net object [CreateInstance] [0x80131047]

Can anyone share your ideas on how to access the external dll's with dotnet object with out registering to the windows.

Thanks in advance.

What I have tried:

Push(".Net");
$stack->Push("Hello ");
echo $stack->Pop() . $stack->Pop();
$oDotNetObject = new dotnet("C:\VsProjects\WebApplication1\bin\WebApplication1.dll"," WebApplication1.Class1");
echo $oDotNetObject->ping();
?>