When I attempt to uncompress the files I downloaded from your site, WinZip complains that the file name is insensible. How can I uncompress the file?

The total path length (not file name length) has to be less than 255 characters. Our file names can be lengthy. If the path to which you wish to extract your files is also lengthy, then WinZip will fail.

Extract your files to the root directory of your hard drive. I.e., extract the files to c:/ instead of c:/User/My Documents/Various Social Science Projects On Which I Work/ICPSR Data/.