From: Bob Batzinger <bob@...>
Date: 2008-07-16T04:09:01+09:00
Subject: Problems with win32 Process.kill

I have followed the discussion for getting the win32 methods
Process.create and Process.kill to work that have been posted earlier on
this forum. In an electronic signage project, I have no trouble getting
Ruby to create and destroy a process running ruby.exe or notepad.
However, when I try to use Ruby to open and close a browser application
like Firefox or a PDF viewer, the following code will open the
application but the kill method aborts with a error message "The handle
is invalid." I get this regardless of whether I use the full path name
of the application or the name without an extension of applications that
are located within a directory of the system PATH.

require 'rubygems'
require 'win32/process'

info = Process.create(
 :app_name => '"c:\program files\mozilla firefox\firefox.exe"'
)
sleep 5
Process.kill(9, info.process_id)

This is very baffling to me and I would appreciate any hints or
suggestions on how to over come this problem. Thanks.

BTW, I am using win32-process-0.5.9 and Ruby 1.8.6. The same results are
obtained on both Win XP and Windows Vista.
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