Daniel Berger wrote: > Can you provide more information? > > What is the OS, Ruby version and win32-process version? > > What result of "p x" ? > x = Process.create(:app_name => "notepad") > p x > > Thanks, > > Dan OS: Windows XP prof SP2 Ruby: ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32] Win32: 0.5.4 (updated yesterday) p x prints: #<struct Struct::ProcessInfo process_handle=8072, thread_handle=8064, process_id=2804, thread_id=2808> The funny thing is, i have setup a vmware session with xp prof sp2, ruby 1.8.6 and win32 0.5.4 and it works there. thx ck -- Posted via http://www.ruby-forum.com/.