Upload a file to SharePoint through the built-in web services

Question

What is the best way to upload a file to a Document Library on a SharePoint server through the built-in web services that version WSS 3.0 exposes?

Following

Answer 1

public static void UploadFile(byte[] fileData) {
  var copy = new Copy {
    Url = "http://servername/sitename/_vti_bin/copy.asmx", 
    UseDefaultCredentials = true
  };

  string destinationUrl = "http://servername/sitename/doclibrary/filename";
  string[] destinationUrls = {destinationUrl};

  var info1 = new FieldInformation
                {
                  DisplayName = "Title", 
                  InternalName = "Title", 
                  Type = FieldType.Text, 
                  Value = "New Title"
                };

  FieldInformation[] info = {info1};
  var copyResult = new CopyResult();
  CopyResult[] copyResults = {copyResult};

  copy.CopyIntoItems(
    destinationUrl, destinationUrls, info, fileData, out copyResults);
}

NOTE: Changing the 1st parameter of CopyIntoItems to the file name, Path.GetFileName(destinationUrl), makes the unlink message disappear.