W2K professional+IIS 5+PHP4.1.2(ISAPI)
Example,there is a data file named test.hdb about 1.1M,I want read it to a string.

		function readFiles ($path) {
			$fopen = fopen ($path,'r');
			$fread = fread ($fopen,$this->file_size);
			fclose ($fopen);

			return $fread;
		}
$fread = readFiles('test.hdb');
$fp = fopen('test2.hdb');
fwrite($fp, $fread);
fclose($fp);

Result test2.hdb only about 444K,I think something lost.

It runs good in CGI modules,but fail in ISAPI.