Revision as of 19:48, 31 May 2019 by PurpleGurl (Moved code history and gave it a section. Bolded first use of term.)
Atapi.sys is the name of the ATAPI driver in Microsoft Windows and ReactOS.
atapi.sys is needed to address certain ATA (IDE a.k.a "Parallel ATA") devices (hard drives, optical drives).
atapi.sys is a miniport driver.