Microsoft KB Archive/190524

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PRB: Standby Power State Not Supported in Windows 98

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Q190524

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The information in this article applies to:


 * Microsoft Win32 Device Driver Kit (DDK) Windows 98

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SYMPTOMS
Windows 98 does not allow the system to enter a "standby" power state. Instead, the system might enter a "suspend" power state.

CAUSE
Windows 98 does not support the "standby" power state. If the BIOS requests standby, Windows 98 rejects the standby request and sets the system power state to suspend if suspend is supported.

STATUS
This behavior is by design.

MORE INFORMATION
According to section 4.3.1 of the Advanced Power Management 1.2 specification, event code 1 is for standby requests. Windows 95 attempts to set the system power state to standby when handling this BIOS event request. However, Windows 98 rejects a standby request and attempts to suspend the system if suspend is supported.

Additional query words:

Keywords : kbDDK kbOSWin98

Issue type : kbprb

Technology : kbAudDeveloper kbWin98search kbWinDDKSearch kbWin32sSearch kbWin32DDKSearch kbWin32DDK98