Display Power Management for Windows NT
The EnergySaver makes DPMS services available to mainstream NT users and administrators in a low-cost and compact package. Designed to operate "behind" the screen saver of your choice, the EnergySaver can be configured to power down Energy Star compliant monitors when not in use, extending monitor life-span while reducing electricity expenses. Direct hardware control over vertical and horizontal sync signals supplement full support for industry-standard VESA hardware and software power management protocols to ensure the widest possible compatibility - including support for multiple monitor setups. Graphics chipsets specifically supported include those from 3Dlabs, 3dfx, Alliance, Ark Logic, ATI, C&T, Cirrus Logic, Intel, Matrox, Number Nine, NVidia, Rendition, S3, Trident and Tseng Labs.

 Important!
Windows NT - The EnergySaver's power management services are available to NT itself and to all users, regardless of rights and privileges, but you must have administrative privileges in order to install the software. For additional assistance in extending DPMS services to all users, please download and consult the small patch here (16k). EnergySaver is compatible with all x86 versions of Windows NT, including NT 3.1 and 3.5.
Windows 9x/Me/2000/XP - Although designed primarily for NT, the EnergySaver can be used in place of both BIOS and Windows native display power management in the event these cause problems (e.g., ACPI compatibility issues, failure to wake up, etc.).