Compression

Is there anyway to work with compressed files in Visual Basic? For example, unzip (or any other compression type) a group of files into a folder?

For example code and libraries to ZIP and UNZIP have a look at vbAccelerator (http://www.vbaccelerator.com/codelib/zip/zipvb.htm), for bZip2 or zLib have a look at my own website (http:/www.relevant.nl/vb).

oh you mean to use already made formats :( that dissapoints me. i thought this was going to be about compression algorithms. oh well, i guess you should be able to do it with a procedure of some kind (although i'm not sure it's legal). check winzip's site.