From: Phi Li Date: 2012-07-24T08:14:48+09:00 Subject: Getting a ""Exec format error" executing a 64bit process I am getting a "Exec format error" on Windows 7 64 bit when trying to run the 7zip 64bit installer. Same error if I use IO.popen(cmd) . I am making a script to download and install softwares on a new computer. What can I do to make this work? Thanks. setupNewComputer.rb: `7z920-x64.msi` `C:\\SetupNewComputer\\downloads\\7z920-x64.msi` Output: C:\SetupNewComputer\downloads>ruby setupNewComputer.rb setupNewComputer.rb:1:in ``': Exec format error - C:\SetupNewComputer\downloads\ 7z920-x64.msi (Errno::ENOEXEC) from setupNewComputer.rb:1 C:\SetupNewComputer\downloads>ruby setupNewComputer.rb setupNewComputer.rb:1:in ``': Exec format error - 7z920-x64.msi (Errno::ENOEXEC) from setupNewComputer.rb:1 C:\SetupNewComputer\downloads> -- Posted via http://www.ruby-forum.com/.