thank you all, I've red your answers today because I've been away.
Alessio

>There is an example of validating IBAN codes here:
>
>http://www.klaban.torun.pl/patches/Validate/Validate-0.1.2.diff
>
>You'll have to convert it to VFP.
>
>You might also find these helpful:
>
>http://www.winbank.gr/ecPortal.asp?id=221926&nt=84&lang=2
>
>Country Codes:
>
>01 - Andorra [AD] NEW!
>02 - Austria [AT]
>03 - Belgium [BE]
>04 - Czech Republic [CZ] NEW!
>05 - Denmark [DK]
>06 - Finland [FI]
>07 - France [FR]
>08 - Germany [DE]
>09 - Gibraltar [GI] NEW!
>10 - Greece [GR]
>11 - Hungary [HU] NEW!
>12 - Iceland [IS]
>13 - Ireland [IE]
>14 - Italy [IT]
>15 - Luxemburg [LU]
>16 - Netherlands [NL]
>17 - Norway [NO]
>18 - Poland [PL]
>19 - Portugal [PT]
>20 - Slovenia [SI] NEW!
>21 - Spain [ES]
>22 - Sweden [SE]
>23 - Switzerland [CH]
>24 - UK [GB]