Some unpack ActiveX?

Hi,
Im looking for any free component to unpack files (zip or rar). Anyone found something like that?

I haven't used it myself, but have you looked at zlib? http://www.zlib.net/

Like this?

http://www.xstandard.com/en/documentation/xzip/

http://www.polarsoftware.com/products/zip/zipcryptolight.asp

Also useful for Web and Web Services work you might need gzip:

http://www.xstandard.com/en/documentation/xgzip/