On 25 Feb 2001, 23:53, [EMAIL PROTECTED] wrote:

> I am looking for a simple DOS program that has two parameters, the
> name of a ZIP (compressed) file, and the name of a file which might be
> compressed within that ZIP file, that returns the truth about the latter
> being contained within the former as the DOS variable "errorlevel".
> 
> The thinking here is that if a file already exists within the ZIP of the
> same name as a file I would have added to the ZIP, I could discard the
> file rather than waste the time of adding it again.

I believe the shareware PKZip 2.50 will do all you ask and more.  
Read the features here:

http://www.pkware.com/catalog/zipdos.html

Pretty expensive for a DOS program.  Must you do this from DOS?  


Alan
[EMAIL PROTECTED]


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