Library file in QTP is a separate file with ext. .qfl or .vbs. We can create these files to store commonly used functions and subroutines. These files can be accessed by any action by associating the library file to that action.Thanks,Harish
Step generator works as a library of vbscrript statements. we can use this Step generator from the keyword view and from the expert view.Insert menu-....--------- step---------Step generator (F7)._Step generator---expert mode_categorylibaryoperation.Arguments.