Hi Patrick
I am using ASP.NET 3.5 (C#) using Web References.
I use the following code
// Moodle Objectorg.ndcde.moodle01.
MoodleWS moodle = new TestMoodleWeb.org.ndcde.moodle01.MoodleWS();// Loginorg.ndcde.moodle01.
loginReturn loginObject = moodle.login("thomassen", "aB91858324");// Create a string array with userids String[] studentArray = new String[1] { "155" };// Enroll Students object enrollmentObject = moodle.enrol_students(loginObject.client, loginObject.sessionkey, "HCO2011W", studentArray, "id");This is the error I see: