From: "nobu (Nobuyoshi Nakada)" Date: 2013-02-27T21:14:16+09:00 Subject: [ruby-core:52995] [ruby-trunk - Feature #1482] Kernel.exec doesn't respect COMSPEC environment variable on Windows Issue #1482 has been updated by nobu (Nobuyoshi Nakada). Unfortunately, I've lost my topic branch for this issue, so have to rewrite from the previous patch again. ---------------------------------------- Feature #1482: Kernel.exec doesn't respect COMSPEC environment variable on Windows https://bugs.ruby-lang.org/issues/1482#change-37149 Author: dolzenko (Evgeniy Dolzhenko) Status: Assigned Priority: Normal Assignee: nobu (Nobuyoshi Nakada) Category: core Target version: current: 2.1.0 =begin Here is pretty convoluted test case: puts ENV["COMSPEC"] # => "C:\WINDOWS\system32\mycmd.exe" File.open("1.bat", "w") { |f| f.write("time") } # create test batch file with command which waits for user input Kernel.exec("1.bat") # now the process tree inspection shows that the "C:\WINDOWS\system32\cmd.exe" is still used to interpret 1.bat =end -- http://bugs.ruby-lang.org/