Windows kernel obsolete routines

The following obsolete routines are exported to support existing binaries:

Obsolete routine	Description
ExAcquireResourceExclusive	Use ExAcquireResourceExclusiveLite instead.
ExAcquireResourceShared	Use ExAcquireResourceSharedLite instead.
ExAllocateFromZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExConvertExclusiveToShared	Use ExConvertExclusiveToSharedLite instead.
ExDeleteResource	Use ExDeleteResourceLite instead.
ExExtendZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExFreeToZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExInitializeResource	Use ExInitializeResourceLite instead.
ExInitializeWorkItem	Use IoAllocateWorkItem instead.
ExInitializeZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExInterlockedAllocateFromZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExInterlockedDecrementLong	Use InterlockedDecrement instead.
ExInterlockedExchangeAddLargeInteger	For more information about atomically adding two 64-bit numbers, see InterlockedExchangeAdd64.
ExInterlockedExchangeUlong	Use InterlockedExchange instead.
ExInterlockedExtendZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExInterlockedFreeToZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExInterlockedIncrementLong	Use InterlockedIncrement instead.
ExIsFullZone	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExIsObjectInFirstZoneSegment	Use lookaside lists instead. For more information, see Using Memory Buffers.
ExIsResourceAcquired	Use ExIsResourceAcquiredLite instead.
ExIsResourceAcquiredExclusive	Use ExIsResourceAcquiredExclusiveLite instead.
ExIsResourceAcquiredShared	Use ExIsResourceAcquiredSharedLite instead.
ExReleaseResource	Use ExReleaseResourceLite instead.
ExReleaseResourceForThread	Use ExReleaseResourceForThreadLite instead.
IoAllocateAdapterChannel	Use AllocateAdapterChannel instead.
IoAssignResources	Drivers of PnP devices are assigned resources by the PnP manager, which passes resource lists with each IRP_MN_START_DEVICE request. Drivers that must support a legacy device that cannot be enumerated by the PnP manager should use IoReportDetectedDevice and IoReportResourceForDetection instead.
IoAttachDeviceByPointer	Use IoAttachDeviceToDeviceStack instead.
IoFlushAdapterBuffers	Use FlushAdapterBuffers instead.
IoFreeAdapterChannel	Use FreeAdapterChannel instead.
IoFreeMapRegisters	Use FreeMapRegisters instead.
IoMapTransfer	Use MapTransfer instead.
IoQueryDeviceDescription	This routine retrieves hardware configuration information about a given bus, controller or peripheral object, or any combination of these three types from the \Registry\Machine\Hardware\Description tree. Drivers that require hardware configuration information should use IoGetDeviceProperty instead.
IoReportResourceUsage	This routine claims hardware resources, such as an interrupt vector, device memory range or a particular DMA controller channel in the \Registry\Machine\Hardware\ResourceMap tree, so that a subsequently loaded driver cannot attempt to use the same resources. If a new driver must support a legacy device that is not PnP-enumerable, the driver should call IoReportResourceForDetection to claim resources for the device.
KeGetDcacheFillSize	Drivers should call GetDmaAlignment instead.
MmCreateMdl	Use IoAllocateMdl instead.
MmIsNonPagedSystemAddressValid

Related topics

AllocateAdapterChannel
ExAcquireResourceExclusiveLite
ExAcquireResourceSharedLite
ExConvertExclusiveToSharedLite
ExDeleteResourceLite
ExInitializeResourceLite
ExIsResourceAcquiredExclusiveLite
ExIsResourceAcquiredSharedLite
ExReleaseResourceForThreadLite
ExReleaseResourceLite
InterlockedDecrement
InterlockedExchange
InterlockedIncrement
FlushAdapterBuffers
FreeAdapterChannel
FreeMapRegisters
GetDmaAlignment
InterlockedExchangeAdd64
IoAllocateMdl
IoAllocateWorkItem
IoAttachDeviceToDeviceStack
IoGetDeviceProperty
IoReportDetectedDevice
IoReportResourceForDetection
IRP_MN_START_DEVICE
MapTransfer