Adding files to Gzip in C#

gzip.cs

public static void Compress(FileInfo fileToCompress)
{
	var bytes = File.ReadAllBytes(fileToCompress.FullName);
	using (FileStream fs = new FileStream(fileToCompress.FullName + ".gzip", FileMode.CreateNew))
	using (GZipStream zipStream = new GZipStream(fs, CompressionMode.Compress, false))
	{
		zipStream.Write(bytes, 0, bytes.Length);
	}
}