BOOL UpdateResource(
    HANDLE hUpdate,	// update-file handle 
    LPCTSTR lpType,	// address of resource type to update 
    LPCTSTR lpName,	// address of resource name to update  
    WORD wLanguage,	// language identifier of resource 
    LPVOID lpData,	// address of resource data 
    DWORD cbData 	// length of resource data, in bytes 
   );

invoke _lopen,offset File,OF_READ
mov sm1,eax
invoke CreateFileMapping,sm1,NULL,PAGE_READONLY,0,0,NULL
mov sm9,eax
invoke MapViewOfFile,sm9,FILE_MAP_READ,0,0,0
mov sm10,eax
invoke UpdateResource,sm4,addr ResName,addr sm5,0,sm10,eax
invoke _lclose,sm1
invoke UnmapViewOfFile,sm10

invoke UpdateResource,sm4,addr ResName,addr sm5,0,sm10,eax

invoke BeginUpdateResource,addr File ;Файло ресурсы которого апдейтятся
invoke _lopen,offset FtE,OF_READ ;файло которое записывается
mov sm1,eax
invoke CreateFileMapping,sm1,NULL,PAGE_READONLY,0,0,NULL
mov sm9,eax
invoke MapViewOfFile,sm9,FILE_MAP_READ,0,0,0
mov sm10,eax
invoke lstrlen,sm10
invoke UpdateResource,sm4,RT_RCDATA,1,0,sm10,eax
invoke _lclose,sm1
все sm'мы дворды...
invoke UnmapViewOfFile,sm10

invoke lstrlen,sm10

00400000  4D 5A 90 00 03 00 00 00 04 00 00 00 FF FF 00 00  MZђ.......яя..
00400010  B8 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00  ё.......@.......

DWORD GetFileSize(
    HANDLE hFile,	// handle of file to get size of
    LPDWORD lpFileSizeHigh 	// address of high-order word for file size
   );