question on _lclose16

[Rafael Kitover]

In files/file.c, line 1351:

HFILE16 WINAPI _lclose16( HFILE16 hFile )
{
    if (hFile < 5)
    {
        FIXME("stdio handle closed, need proper conversion\n" );
        SetLastError( ERROR_INVALID_HANDLE );
        return HFILE_ERROR16;
    }
....


What does this mean? Taking it out doesn't seem to hurt anything. I 
understand from this block:

static void FILE_InitProcessDosHandles( void )
{
    dos_handles[0] = GetStdHandle(STD_INPUT_HANDLE);
    dos_handles[1] = GetStdHandle(STD_OUTPUT_HANDLE);
    dos_handles[2] = GetStdHandle(STD_ERROR_HANDLE);
    dos_handles[3] = GetStdHandle(STD_ERROR_HANDLE);
    dos_handles[4] = GetStdHandle(STD_ERROR_HANDLE);
}

why we don't want to close those handles probably. But why would I see 
that message, do sloppy windows programs try to close a range of handle 
numbers or something? Tell me what needs to be properly converted to 
what and I'll try to do it :P