How to compress four months archive files using c#.net1.1

using System.IO;
using System.Drawing.Printing;
using RasterEdge.Imaging;
using RasterEdge.Imaging.Codec.Compression;

ImageCompression.infile(@"C:\1.tif");
ImageCompression.Outfile(@"C:\2.tif");
ImageEncoder = ImageEncoder.Group3Encoding

RasterEdgeImaging Image = new RasterEdgeImaging();
Image.ImageCompression(@"C:\1.tif", "C:\2.tif", ImageEncoder ImageEncoder.Group3Encoding);