This function checks whether the OS can obtain version information about a specified file. If version information is available, this function returns the size, in bytes.
The size, in bytes, of the file version indicates success. Zero indicates failure. To get extended error information, call GetLastError.
The version information functions are only compatible with 32-bit Windows file images. They are not compatible with 16-bit Windows file images.
Call this function before calling the GetFileVersionInfo function. The size returned by this function indicates the buffer size required for the version information returned by GetFileVersionInfo.