It seems that I am hunted with library search problems.... I installed the net-ssh Gem, and gem indeed installed it at the default library for Jruby, but still my program can't find the library! Here is the installation command and its output: H:\dl\lang\net-ssh-1.1.1>gem install net-ssh Bulk updating Gem source index for: http://gems.rubyforge.org Install required dependency needle? [Yn] y Successfully installed net-ssh-1.1.1 Successfully installed needle-1.3.0 Installing ri documentation for net-ssh-1.1.1... Installing ri documentation for needle-1.3.0... Installing RDoc documentation for net-ssh-1.1.1... Installing RDoc documentation for needle-1.3.0... This is my Gem environment: C:\ruby185\lib\ruby\site_ruby>gem environment RubyGems Environment: - VERSION: 0.9.1 (0.9.1) - INSTALLATION DIRECTORY: H:/jruby-0.9.9/lib/ruby/gems/1.8 - GEM PATH: - H:/jruby-0.9.9/lib/ruby/gems/1.8 - REMOTE SOURCES: - http://gems.rubyforge.org But when I want to run the following program, I get an error message saying that net/ssh is not found: H:\tmp>type t2.rb require 'socket' require 'net/telnet' require 'net/ssh' H:\tmp>jruby t2.rb t2.rb:3:in `require': no such file to load -- net/ssh (LoadError) from t2.rb:3 Since the library was installed using the "gem" command, jruby should be able to locate it automatically, doesn't it? Ronald -- Ronald Fischer <ronald.fischer / venyon.com> Phone: +49-89-452133-162 -- Ronald Fischer <ronald.fischer / venyon.com> Phone: +49-89-452133-162