Reading From A Zipped File

I see some programs with the ability to get information from zipped files. Like MAME, a emulator, it can read roms files contained inside a zipped file.

Can someone here tell me how to do this in delphi? If you can provide a solution for reading data in a password-protected file, I'll give you 20 more points.
jackjokerAsked:
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simonetCommented:
Here you go:

Several Delphi compression components compared, so you can choose which one better fits your needs. All of them are Zip-compatible.

http://www.pcdefrag.8m.com/zip.htm

Yours,

Alex
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