Download Document from SharePoint Library using WebService

In  following code, I am reading the contents from the documents and creating and storing documents in local system

//Copy WebService Settings
string webUrl = "http://portal/";
WSCopy.Copy copyService = new WSCopy.Copy();

copyService.Url = webUrl+"/_vti_bin/copy.asmx";

copyService.Credentials = System.Net.CredentialCache.DefaultCredentials;

//Source and Destination Document URLs
string sourceUrl = "http://localhost:1000/Shared%20Documents/Sample.doc";
string destinationUrl = "C:\\Documents\Sample.doc";


//Variables for Reading metadata’s of a document
WSCopy.FieldInformation fieldInfo = new WSCopy.FieldInformation();
WSCopy.FieldInformation[] fieldInfoArray = { fieldInfo };
WSCopy.CopyResult cResult1 = new WSCopy.CopyResult();
WSCopy.CopyResult cResult2 = new WSCopy.CopyResult();
WSCopy.CopyResult[] cResultArray = { cResult1, cResult2 };


//Receive a Document Contents into Byte array (filecontents)
byte[] fileContents = new Byte[4096];
copyService.GetItem(sourceUrl, out fieldInfoArray, out fileContents);


//Create a new file and write contents to that document
FileStream fStream = new FileStream(destinationUrl, FileMode.Create, FileAccess.ReadWrite);
fStream.Write(fileContents, 0, fileContents.Length);
fStream.Close();