Compression

gistfile1.cs

namespace Compression
{
    public class Compression
    {
        public static void Compress(FileInfo fi)
        {
            using (FileStream inFile = fi.OpenRead())
            {
                if ((File.GetAttributes(fi.FullName) & FileAttributes.Hidden) != FileAttributes.Hidden & fi.Extension != ".gz")
                {
                    using (FileStream outFile = File.Create(fi.FullName + ".gz"))
                    {
                        using (GZipStream Compress = new GZipStream(outFile, CompressionMode.Compress))
                        {
                            inFile.CopyTo(Compress);
                        }
                    }
                }
            }
        }
    }
}