Has someone tried to run irb on Ruby.NET? I tried but I just got this error message: PS D:\Projects\Ruby.NET\Bin> .\RubyCompiler -I C:\Programmi\Ruby\lib\ruby\1.8\ C:\Programmi\Ruby\lib\ruby\1.8\launch.rb Error: Ruby.RubyException: Use Ruby 1.1 at Ruby.Compiler.AST.PROGRAM.ExecuteInit(Assembly Assembly, Frame caller) at Ruby.Compiler.AST.PROGRAM.ExecuteInit(PEFile Assembly, Frame caller) at Ruby.Methods.rb_f_load.Call1(Object recv, Frame caller, Proc block, Object fname) at Ruby.Methods.rb_f_require.Call1(Object recv, Frame caller, Proc block, Object fname) at Ruby.Eval.CallPrivate1(Object recv, Frame caller, String methodId, Proc block, Object arg1) at launch.Init(Object recv, Frame caller) at launch.Main(String[] args) launch.rb code taken from irb.bat script: #!/bin/ruby require "irb" if __FILE__ == $0 IRB.start(__FILE__) else # check -e option if /^-e$/ =~ $0 IRB.start(__FILE__) else IRB.setup(__FILE__) end end I use Windows XP SP2, .NET 2.0 and ruby 1.8. any idea?