Try

CTOBIN(lcStr, "4RS")

>
>I have a problem convertin data read from a binary file. I have to import these data into a DBF.
>
>Data in the source file where stored by an old DOS based application (may be Pascal or Basic) I know the structure of this file but I have some trouble converting numeric data.
>
>For exemple Date are stored in YYYYMMDD format, as a long (4 bytes)
>
>Exemple :
> ASC(byte1) = 56
> ASC(byte2) = 203
> ASC(byte3) = 49
> ASC(byte4) = 1
>
>This should be converted to a date.... but HOW ??????
>