>Dear All,
> I having a problem with calling API.
>
>DECLARE INTEGER USBLANRead_ IN Smartkey.dll AS USBLANRead INTEGER, STRING @,INTEGER
>
> But i had try out with some computer,some of them work well and some of them are prompt out this error message.
>
> I'm using Microsoft Visual Foxpro 7.0.
>
> Please advice. thank you .
>
>Regards,

Nicholas,

Usually this indicates that there's a problem with the version of the operating system. I've only run into it with Win9x, not Win2K or above. So the question becomes are the ones where it fails Win 9x boxes?