Problems with getprotobyname, win, php 4.3.10

Hi list, I am writing a standalone PHP program (not web based, but not GTK either, just a console app) and I want to re-distribute the PHP binaries with it. Then I noticed that on a particular WinXP machine - not a brand new install, but recent-ish - the getprotobyname('tcp') call fails (returning bool(false) according to var_dump). When trying to reproduce the problem on my other WinXP (where it normally works fine) I have pinpointed it to the file called C:\WINDOWS\system32\drivers\etc\protocol If I either unset the SystemRoot environment setting, or rename the 'protocol' file I get the same behaviour of getprotobyname() (returning false instead of 6) Btw, the SOL_TCP constant is undefined when getprotobyname returns false, as it is set at runtime. Of course I can bypass this by more ot less 'safely' hardcoding SOL_TCP to be 6 (if undefined), but I don't like it - I'd rather discover the primary reason for this to happen. Has anyone here tackled with a similar problem? Ideas what might be wrong, or what additional test could be done? Thanks. -----------[ Code to reproduce ]------------- <?php $a = getprotobyname('TCP'); var_dump($a); ?> --------------------------------------------- ----------------------------- http://www.atol.bg - Íàìåðè áèâøèòå ñè ñúó÷åíèöè è ñòàðè ïðèÿòåëè!