I think that was it. I always used to have my external calls (both to 
Windows and 3rd party .OCX objects) in standalone libraries with their 
own uses block related only to external calls. I think the trick was to 
separate Paradox and non-Paradox functions as much as possible.

Dlls with compound parameters are more difficult. Individual parameters 
are OK.

On 27/02/2023 2:14 pm, Kevin Zawicki wrote:
> I use both, both can have issues. Early on many people recommended putting
> all non objectPal call (DLLs) in their own library and not mixing in Uses
> block.
> I think it was Paradox leaking memory using the DLLs, not the DLLs themselves.
> Some DLL calls may be more difficult than others, I guess.
>