how to tell if a file is zipped

[Muddy]

is there anyway to programatically (VB6) determine if a file is compressed. I need something that will work for files with and without the *.zip extension.

Thanks for any help

[phinds]

muddy,

the ZIP file format is well known and available and yes, you can figure out by the presence of some internal tags whether a file is in fact a ZIP file (regardless of its extent)

[Muddy]

Originally posted by phinds
muddy,

the ZIP file format is well known and available and yes, you can figure out by the presence of some internal tags whether a file is in fact a ZIP file (regardless of its extent)

phinds,
Thanks, Ill continue searching around the web. If you know of a standard that I can use as search term, it would be appreciated.

Thanks again.