I have invoke K2 web service by simple web application.
the code:
K2Services.WorklistItem[] wl;
K2Services.WS client = new K2Services.WS();
client.Credentials = System.Net.CredentialCache.DefaultCredentials;
wl = client.OpenWorklist(true);
when i started the page, the web service has been responded with "The request failed with HTTP status 401: Unauthorized"