how to run windows service based on who's LogIn to windows

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C#

Windows

webservice

Hi all,

I am working on windows service.
In windows service I am get the data from Web Service. So I add web reference and get the data successfully. It's working fine.

But what I do is Web Service Credentials are Hard Code it like below.

Test_Service tcsrvc = new Test_Service();
            Test[] tc;

            tcsrvc.Credential = new System.Net.NetworkCredential("username", "password");
            tc = tcsrvc.ReadMultiple(null, null, 0); 

In my question is if suppose this username is deactivated from windows LogIn this credentials are not working.

So how can acheive this? without hard code the credential.

or

how to pass windows LogIn username and password to this web service credentials?

Thanks in advance...........