Compression Assemblies for C#/.Net?

I know about SharpZipLib...but what else is out there? I'd like to make myself a file archiving util开发者_运维技巧ity that supports multiple compression formats. Any ideas?

QuickLZ claims to be the fastest in the world.

http://www.quicklz.com/

How about System.IO.Packaging?

http://msdn.microsoft.com/en-us/library/system.io.packaging.aspx

There's the built-in System.IO.Compression library which supports GZip and Deflate. That's not a bad place to start as its documentation is better than most.

LZMA SDK (7-Zip format) - one of the more efficient algorithms out there.

http://www.7-zip.org/sdk.html

http://dotnetzip.codeplex.com/ <-- imho easier than sharpziplib

http://sevenzipsharp.codeplex.com/ <-- wrapper around 7zip

http://www.chilkatsoft.com/zip-dotnet.asp <-- not free. bz2, gzip and .z