>They can change date from setup or with boot a diskette...
>
>>Metin, just a suggestion,
>>instead of using Internet sincronisation why you didn'd put all the casiers in a Usergroup of windows that can't do anything instead of work? They must have no access to control panel, to change Date and Time put all restriction that comes to your mind. This will works if they didn't use Windows 9x :o)

No way. Put password for CMOS and set the computer FIRST boot device to be HDD-0 then they can't get access to CMOS and can not boot from diskette.