If you didn't create the additional functions, you can't see the code. To create your own:

- The component must be a COM DLL
- The DLL name must start with the letters CRUFL
- You *must* specify the data type for all parameters and return values
- Crystal Reports only looks for the UFL file when it launches.

>How can i see the code for some additional functions on the crystal reports?
>
>the version of the crystal is 8,
>
>when you are creating a formula i can see above a sectrion that says
>additional function under functions middle section.
>
>How I add those, and how can i edit them?