thanks Gregory

>>I need to know which Operating system is running on a PC,
>>I know I have to Use OS() but how can I tell which is the OS ?
>>I mean which number is associated to W98 or Win ME whhere can I find a table
>>whith the code numbers of the Operating Systems ?
>>thx
>
>This is what I use
>

>*-----------------------------------------------------------------------
>#define VERSION_OF_WINDOWS	(val(ltrim(substr(os(), at(' ', os())))))
>
>#define	WIN95_VERSION		4.00
>#define	WIN98_VERSION		4.10
>#define	WINME_VERSION		4.90
>#define	WIN2K_VERSION		5.00
>#define	WINXP_VERSION		5.01
>#define	WIN2003_VERSION		5.02
>
>#define	WIN98_OR_HIGHER		(VERSION_OF_WINDOWS >= WIN98_VERSION)
>#define	WIN2K_OR_HIGHER		(VERSION_OF_WINDOWS >= WIN2K_VERSION)
>#define	WINXP_OR_HIGHER		(VERSION_OF_WINDOWS >= WINXP_VERSION)
>*-----------------------------------------------------------------------
>