If you've got a Stream in .NET - whether its fetched from a HttpWebRequest or read from another file - you can easily save this stream to another file using the following code.
// readStream is the stream you need to read
// writeStream is the stream you want to write to
private void ReadWriteStream(Stream readStream, Stream writeStream)
{
int Length = 256;
Byte [] buffer = new Byte[Length];
int bytesRead = readStream.Read(buffer,0,Length);
// write the required bytes
while( bytesRead > 0 )
{
writeStream.Write(buffer,0,bytesRead);
bytesRead = readStream.Read(buffer,0,Length);
}
readStream.Close();
writeStream.Close();
}
To call this method, just do something like this:
string saveTo = "some path to save"
// create a write stream
FileStream writeStream = new FileStream(saveTo, FileMode.Create, FileAccess.Write);
// write to the stream
ReadWriteStream(readStream,writeStream);