>Hi,
> How could I customise or modify the setting in system.ini using program?
>

If you're using VFP6, the FFC has a class that can manipulate .INI files; it's called OLDINIREG, a part of REGISTRY.VCX. I don't have source code to give you, and you'll have to read the class code to figure out what the parameters are that are needed to make additions or changes - there are a relatively few (4 to be exact) public methods involved, so it shouldn't be a great difficulty to figure it out - the full source is contained in the class library.

With older versions of VFP, you might want to look in the Files Section of UT for a class to do this. The manipulations are best done using a small set of API calls; the code to access those API calls is shown in OLDINIREG, so you could adapt it from there if necessary.

Obviously, you have to fully understand the consequences of any changes that you make; it's quite easy to create a non-functional system with careless manipulation of critical INI files or the registry.