| Debugging Tools for Windows |
The !acpiirqarb extension displays the contents of the Advanced Configuration and Power Interface (ACPI) IRQ arbiter structure, which contains the configuration of I/O devices to system interrupt controller inputs and processor interrupt dispatch table (IDT) entries.
| Windows NT 4.0 | Unavailable |
| Windows 2000 | Unavailable |
| Windows XP and later | Kdexts.dll |
For information about the ACPI, see the Microsoft Windows Driver Kit (WDK) documentation, the Windows SDK documentation, and Microsoft Windows Internals by Mark Russinovich and David Solomon. Also see ACPI Debugging for information about other extensions that are associated with the ACPI.