when you create the udf, you save it anywhere in your computer.

then you open your project. on your project go to tools------option.......UDF.

when you get to UDF, click ADD UDF, it will open up your computer directory, go to where you save the UDF file in your computer and select it.

by that you have added the UDF.

note that your UDF file must be in that location always for you to be able to use it in your program. if you changed the position i.e say from desktop to my document. you have to re add the udf in your project before you will be able to use it.

Hello everyone, how do you solve the problem that when creating a program that has associated UDF files, when saving them in the laptop there is no problem, but when I backup to a hard disk I have errors.

Thanks in advance.

I just resolved the problem, thanks Ixo