[olug] self extracting encrypted file, windows compatible?

[Ryan Stille]

Is there anyway to generate a secure, compressed file from my Linux web 
server, that will be readable by Windows clients?

Self extracting would be ideal.   Requiring the clients to install 
software to access their files will not go over very well...

If I could generate self extracting (.exe) zip files that are actually 
secure, that would be perfect.   Any ideas?  I'm willing to purchase 
software (for the web server), it doesn't need to be free/open source.

Thanks,
-Ryan