The code I supplied is assuming that you have a crystal report object already setup with the report that you want to print. Am I not giving enough info? Basically, if you are creating a form that will have UI to get parameter values for your report, as long as that form knows and has access to the crystal report object that you are using, you should be able to use something similar to the code I provided. That code will set one specifice parameter. You will need to create some sort of loop around that to set multiple parameters.