Hello Kjell,

KR> Tried to create a simple test UDF, but it doesn't work.
KR> In Delphi7:
KR> ------------------------------------
KR> library AMUDF;

KR> {$R *.res}

KR> type
KR> PInteger = ^Integer;
You don't need it.

KR> function Add(var a, b: PInteger): Integer; stdcall;
Use just
function Add(var a, b: Integer): Integer; stdcall;
(you declared integer parameters in FB, so why do you try to use
pointer to integer here?)

HTH
--
Best regards,
Pavel Menshchikov
http://www.ls-software.com