Newb Newb wrote: > it creates MyTest.o file and mytest(this file type is Apache Loadable > Module) Possibly would be a DLL for Windows? > In irb when i give require 'mytest' > > the irb doesnot display anything... Can you paste *exactly* what you see? If it returns "true" then the extension was loaded correctly. Or did it crash IRB, i.e. you didn't even get a prompt back? -- Posted via http://www.ruby-forum.com/.