Dos driver for the BTC 24X ide cd-rom drive. May also work on other similiar models. Unzip this self extracting file by double-clicking it. Accept the default unzip folder C \BTC24X-dos by clicking the unzip button. Run INSTALL.EXE to install the driver. You will need mscdex.exe along with the actcd.sys file included in this archive. mscdex.exe is available on most dos and windows installation disks.