http://www.ntcompatible.com/index.php Last 20 items on NT Compatible Esselbach Storyteller CMS System http://www.ntcompatible.com/Motorola_SM56_softmodem_PCI_c4787.html This product has been tested on the following operating systems: Windows 2000,Windows Vista and has a average rating of 5<br /><br />The last rating (5) has been submitted on 2009-11-12 12:57:20 by Anonymous running Windows 2000:<br />Motorola SM56 softmodem actually refers to a chipset that Motorola makes and not any specific modem models - these are manufactured by various OEM's. My particular SM56 modem installed and runs great in Win2k. To be honest I didn't expect much from this modem - it's a softmodem afterall, and a cheap one at that ($20) - but it actually connects faster than my $80 Modem Blaster did!