is there a way to view the Unix permissions for a file under Windows?
IIRC Zip files created on Windows default to 0777 for directories, and 0666 for files when extracted on a UNIXy system using the Info-ZIP tools.
Zip files created on a UNIXy system using the Info-ZIP tools will preserve the actual UNIX permissions.
Info-ZIP's zipinfo command will display these permissions.
You can find Windows binaries of Info-ZIP's tools on their website (http://www.info-zip.org/) or as part of Cygwin (http://www.cygwin.com/).
(I'm a former Info-ZIP maintainer for the BeOS and QNX platforms. Long ago. :-))