password protected zip file in c#

can Zippackage class be used to find content i开发者_如何学JAVAnside a password protected zip file, if not can it be done without using any 3rd party api

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I don't think so.

I suggest you use SharpZipLib instead: http://www.icsharpcode.net/opensource/sharpziplib/

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I'd also recommend DotNetZip.