Thanks - more than useful.
J


>>Did someone answer this already?
>>
>>What does OS(1) return under Vista?
>>
>>John Burton
>
>"Windows 6.00"
>
>Maybe you can find this useful:
>
>

>Val(Os(3)) * 1000000 + Val(Os(4)) * 10000 + Val(Os(8)) * 100 + Val(Os(9))
>
>#Define CON_OS_WIN95		4000000
>#Define CON_OS_WIN98		4100000
>#define CON_OS_WIN2K		5000000
>#define CON_OS_WIN2KSP1		5000100
>#define CON_OS_WIN2KSP2		5000200
>#define CON_OS_WIN2KSP3		5000300
>#define CON_OS_WIN2KSP4		5000400
>#define CON_OS_WINXP		5010000
>#define CON_OS_WINXPSP1		5010100
>#define CON_OS_WINXPSP2		5010200
>#define CON_OS_WS03		5020000
>#define CON_OS_WS03SP1		5020100
>#define CON_OS_LONGHORN 	6000000
>#define CON_OS_WINVISTA         6000000
>