CDex is using the Adaptec's ASPI library Manager to communicate with the CD-ROM device, So make sure that you have installed the proper ASPI drivers. Left 4 Dead. CDex is using the Adaptec's ASPI library Manager to communicate with the CD-ROM device, So make sure that you have installed the proper ASPI drivers.

Installation Instruction: This file extracts by default to the c: adaptec directory. If you have changed this directory, please note the directory you have chosen. For Windows 98, NT 4.0, ME and 2000, use the enclosed ASPIINST.EXE file to install the ASPI layer. For Windows XP, select Start - Run from the menu, and then the Browse button. Locate the INSTALL.BAT file in the directory the files extracted to and select the OPEN button. In the command box, add a space and either XP32 for Pentium I/II/III/IV processors or XP64 for Itanium processors. The command should look like: c: adaptec aspi install.bat XP32 or c: adaptec aspi install.bat XP64.

Then select the OK button to run the XP installer. Commandos Strike Force.iso.

Download from this site Force ASPI:-Read the instructions and follow each one -- paying particular attention to this section:-- [bold] ' I recommend using ForceASPI this way: Run dumpASPI to backup your current ASPI layer Run instASPI to install the new ASPI layer Reboot Run aspichk to see if everything worked OK Some people report better success by running killASPI before running instASPI when newer ASPI drivers (such as v4.71.2) have been installed. ' [/bold] This should clear up your ASPI layer problem. Let me say, I used to be Mr. Aspi - I had a standard proceedure. First run the ForceASPI, reboot Then the Adaptec ASPI Update, reboot End result would be: aspixp.sys 32-bit ASPI driver ( v 4.71.2 ) wnaspixp.dll 32-bit ASPI DLL ( v 4.71.2 ) aspi64.sys 64-bit ASPI driver ( v 4.70.8 ) wnaspi64.dll 64-bit ASPI DLL ( v 4.70.8 ) But (maybe because I've been having XP SP2 nightmares) I didn't want to advise anyone to mess with their Native NT SCSI library. I have been where joltcola is, with corrupted weirdness?