function only available if PHP4 compiled using --enable-exif

Does this mean I need to recompile from source code? (seems an extreme measure to me but what do I know) Is that difficult to do on a windows machine? I see it in some phpinfo's out there like this: http://www.php.net/~jimw/info.php but that's not in mine or at school or most hosting companies I'd guess. I'm running 4.3.4 for this function: exif_read_data() http://us2.php.net/manual/en/function.exif-read-data.php Note: This function is only available in PHP 4 compiled using --enable-exif... Since PHP 4.3 user comment can automatically change encoding if PHP 4 was compiled using --enable-mbstring. This function does not require the GD image library.