defaultnetworkcredentials

I'm writing a DLL that has function for getting Alfresco login ticket without using user password, using only a user principal name (UPN). I’m calling alfresco REST API service /wcservice . I use NTLM in Alfresco. I’m impersonating users using WindowsIdentity constructor as explained here http://msdn.microsoft.com/en-us/library/ms998351.aspx#paght000023_impersonatingbyusingwindowsidentity . I checked and user is properly impersonated (I checked WindowsIdentity.GetCurrent().Name property). After impersonating a user, I try to make HttpWebRequest and set its credentials with CredentialsCache

I'm writing some code to utilise a 3rd party component, and I need to supply an object which implements ICredentials when I start to use it. If I write the following... var credential = new NetworkCredential("MyUsername", "MyPassword"); ...and pass "credential", it's fine. But I would like to pass the credentials of the current user (it's a Windows service, so runs as a specified user) . I have tried both of the following, but neither appear to work (or return anything) : NetworkCredential credential = System.Net.CredentialCache.DefaultCredentials; NetworkCredential credential =

I am trying to access a webpage on a same domain / same asp.net application, that is password protected. Credentials are the same both for webpage firing this call and webpage being accessed. Here is the code, and I don't know why I always end up with a login form html code? using (WebClient client = new WebClient()) { client.QueryString.Add("ID", "1040"); //add parameters //client.Credentials = CredentialCache.DefaultCredentials; //I tried to add credentials like this client.Credentials = new NetworkCredential("username", "password"); string htmlCode = client.DownloadString("http://domain.loc