Calling SSRS and Crystal Reports from within a C# application.

Using C#, is there a way to call an external program? I have written a data input program and now that users have had time to enter data they want to run reports. I would prefer they use SSRS but there are those insisting on Crystal Reports. Is there a way to call the default browser and pass the report as a parameter and also give them the option to run Crystal Report and the report in question? The application is presented via a winform.