This may not be relative, but the path "c:\libegb.dl" should be 'c:\libegb.dll", and check the path to the DLL. It is best to either place the DLL in the System32 or the local folder.

>I declared a function of dll and works perfectly into visual foxpro enviroment, but when I build a executable doesn't work.
>Somebody know what's the trouble ???
>
>Below the code program:
>
>local sArqImagem, sAssCentral
>
>sAssCentral = space (3000)
>
>sArqImagem = "C:\ALTERACAO\assinatura_digital2\imagens\f3b9dd4f2.jpg"
>
>*
>
>Declare egb_win_get_central_certificate in c:\libegb.dl string @cert_data
>
>egb_win_get_central_certificate(@sAssCentral)
>
>
>= messagebox (sAssCentral, 64, 'Assinatura Central')
>
>return