[fehnman]

Same here. I can only guess again, but I'd bet that by zipping, the resource fork of the installer was removed.

Thomas, are you packing this on a Windows machine or on a Mac? If on a Mac, which system? Also, StuffIt should work OK, but you may need to encode it afterwards. So you'd do a .sit, and then a .bin or .hqx, exentially creating a .sit.hqx.

Could very well be that the server on which the archive resides, is the culprit.