I’m new to this board and certainly unfamiliar with this problem. I am trying to install a new 4.71 ASPI drivers that I downloaded from the Adaptec web site. When I run the file (aspi_471a22.exe) that I assume will extract the files I receive the following popup error box. The NTVDM CPU has encountered and illegal instruction. CS:0543 IP:0106 OP:63 74 79 70 65 Choose ‘Close’ to terminate the application. I have Windows XP Pro SP1. I have tried downloading the files multiple times and even slightly different versions with the same results. I have found reference to a similar problem with NT listed on the Microsoft site that indicates that this problem occurs with an old version command.com dated 1997. I don’t think this is the problem since I’m using CMD.com and both it and command.com are dated 2001. Any suggestions would be greatly appreciated.