What is it exactly that you are trying to compress? What will the compression be used for?
If all you need is to do something like compress datafiles to make them smaller for transmission, a much easier road is to utilize a commercially available library to do the compression for you.
One I have used with great success in the past is the DynaZIP activex controls from InnerMedia. They are cheap and have no license fee for redistribution.
To learn more about Huffman encoding in general, do an online search for "Huffman Encoding". There are many easy-to-understand explainations of the algorithm and how it's used. This type of encoding isn't rocket science, once you understand how it works the implementation is trivial--as demonstrated by the number o
f programming classes that use huffman encoding as a class design projects.
Give me a little more information on exactly what you are trying to do, and I should be able to come up with something for you...
Mike...