C# run process microsip.exe without access to system micro

Question

I run microsip.exe from my application as

Process.Start("D:\Downloads\MicroSIP-3.21.3\microsip.exe", "06600100010099908");

It works and run calls, but call cant get an access to system microphone. What i should do?

What I have tried: run as "runas" and set in manifest

    <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />

if i run microSip from desktop it works well!