FILEMUIINFO Structure

Question

Hi
I want to get MUI file information directly from a .mui file type (without GetFileMUIInfo function) and I found following structure but some members of
it is missed. Where is complete structure?

typedef struct _FILEMUIINFO {
  DWORD dwSize;
  DWORD dwVersion;
  DWORD dwFileType;
  BYTE  pChecksum[16];
  BYTE  pServiceChecksum[16];
  DWORD dwLanguageNameOffset;
  DWORD dwTypeIDMainSize;
  DWORD dwTypeIDMainOffset;
  DWORD dwTypeNameMainOffset;
  DWORD dwTypeIDMUISize;
  DWORD dwTypeIDMUIOffset;
  DWORD dwTypeNameMUIOffset;
  BYTE  abBuffer[8];
} FILEMUIINFO, *PFILEMUIINFO;

Thanks

Answer 1

By searching and parsing I found this struct and works fine :-)

typedef struct _MUIINFO {
 DWORD dwSignature;
 DWORD       dwSize;
 DWORD       dwVersion;
 DWORD      unknow1; // maybe for alignment
 DWORD       dwFileType;
 DWORD dwSystemAttributes;
 DWORD dwUltimateFallbackLocation;
 BYTE        pServiceChecksum[16];
 BYTE        pChecksum[16];
 DWORD  unknow2[6];

 DWORD       dwTypeNameMainOffset;
 DWORD dwTypeNameMainSize;
 DWORD       dwTypeIDMainOffset;
 DWORD       dwTypeIDMainSize;

 DWORD       dwTypeNameMUIOffset;
 DWORD dwTypeNameMUISize;
 DWORD       dwTypeIDMUIOffset;
 DWORD       dwTypeIDMUISize;

 DWORD       dwLanguageNameOffset;
 DWORD       dwLanguageNameSize;

 DWORD       dwUltimateFallbackLanguageOffset;
 DWORD       dwUltimateFallbackLanguageSize;
} MUIINFO, * PMUIINFO;

Answer 2

Hi @drjackool FILEMUIINFO structure is only used for GetFileMUIInfo function.
For .mui format, you can view the output example shown in this document: Examples for Using MUIRCT:

Here is an example of the resource configuration data output from a .mui file, Shell32.dll.mui, using the -d switch for MUIRCT:

C++

Signature          -    fecdfecd  
Length             -     c8  
RC Config Version  -    10000  
FileType           -    12  
SystemAttributes   -    100  
Service Checksum   -    14f44a8d86bef14af26d9a885964c935  
Checksum           -    f5b3b7ab330439d6fcc07582c3afb613  
MainNameTypes      -    MUI  
MainIDTypes        -    2 3 4 5 6 9 14 16  
Language           -    en-US  

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Answer 3

Structure from MSDN FILEMUIINFO structure
is same as in winnls.h :

//  
// Information about a MUI file, used as input/output in GetFileMUIInfo  
// All offsets are relative to start of the structure. Offsets with value 0 mean empty field.  
//  
  
typedef struct _FILEMUIINFO {  
    DWORD       dwSize;                 // Size of the structure including buffer size [in]  
    DWORD       dwVersion;              // Version of the structure [in]  
    DWORD       dwFileType;             // Type of the file [out]  
    BYTE        pChecksum[16];          // Checksum of the file [out]  
    BYTE        pServiceChecksum[16];   // Checksum of the file [out]  
    DWORD       dwLanguageNameOffset;   // Language name of the file [out]  
    DWORD       dwTypeIDMainSize;       // Number of TypeIDs in main module [out]  
    DWORD       dwTypeIDMainOffset;     // Array of TypeIDs (DWORD) in main module [out]  
    DWORD       dwTypeNameMainOffset;   // Multistring array of TypeNames in main module [out]  
    DWORD       dwTypeIDMUISize;        // Number of TypeIDs in MUI module [out]  
    DWORD       dwTypeIDMUIOffset;      // Array of TypeIDs (DWORD) in MUI module [out]  
    DWORD       dwTypeNameMUIOffset;    // Multistring array of TypeNames in MUI module [out]  
    BYTE        abBuffer[8];             // Buffer for extra data [in] (Size 4 is for padding)  
} FILEMUIINFO, *PFILEMUIINFO;  

Answer 4

Screen-shot of hex dump:

CDFE CDFE is Signature (DWORD)
6001 0000 is dwSize, correct
0000 0100 is dwVersion, correct
0000 0000 should be dwFileType but it is incorrect!