Hello I use Ruby Version 1.6.7 (2002-03-01) [i586-mswin32] on Windows Me. I have a non-graphical Ruby application that uses rubyw.exe. I want to distribute the app to Windows users who don't have Ruby installed. Setting Exerb and Rb2exe aside, I've whittled down a copy of the Ruby base installation to include only the files and libraries my application needs. As a test, I copied the application and the whittled copy of Ruby to a floppy, uninstalled Ruby, restarted my machine, and ran the application from the A drive. No problem. Everything worked fine. However, A friend tried to run the application from the A drive, and the Desktop, of her Windows 98 SE machine but nothing happened. No error messages; No activity from the application; Nothing. I profiled rubyw.exe using Dependency Walker, and I am assured that all of the required Windows/System DLLs are present on the Windows 98 SE machine. Might the problem have to do with the version of one or more of the Windows/System DLLs on the target machine? Perhaps MSVCRT.DLL or another redistributable. I can't verify this for myself; My friend won't let me! Thank you for any suggestion or insight. GZ My Whittled Ruby Installation includes the following folders ruby ruby\bin ruby\lib ruby\lib\ruby ruby\lib\ruby\1.6 ruby\lib\ruby\1.6\net ruby\lib\ruby\1.6\i586-mswin32 ruby\lib\ruby\1.6\i586-mswin32\digest And these files mswin32-ruby16.dll rubyw.exe md5.rb thread.rb timeout.rb digest.so socket.so md5.so ftp.rb http.rb imap.rb pop.rb protocol.rb smtp.rb telnet.rb