C# microsip process access to system micro

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C#

Hi. Help!
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?

if i run microSip from desktop it works well!

What I have tried:

run as "runas" and set

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

in manifest