// ntifs.h

typedef struct _WOF_EXTERNAL_INFO {
  ULONG Version;
  ULONG Provider;
} WOF_EXTERNAL_INFO, *PWOF_EXTERNAL_INFO;
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Windows Driver Kit DDI reference (ns-ntifs-_wof_external_info)

WOF_EXTERNAL_INFO structure

Description

The WOF_EXTERNAL_INFO structure identifies a file backing provider and the overlay service version it supports.

Members

`Version`

The overlay service version. Set to WOF_CURRENT_VERSION.

`Provider`

The identifier of the data source provider. Valid provider identifiers are WOF_PROVIDER_WIM for the Windows Image Format (WIM) provider, and WOF_PROVIDER_FILE for the individual compressed file provider. WOF_PROVIDER_WIM is available starting with Windows 8.1 Update, WOF_PROVIDER_FILE is available starting with Windows 10.

WOF_EXTERNAL_INFO - NtDoc