Thanks for the answer but this won't help us anyway. We cannot enable javascript on any computer in the company's network to make this issue going away. I'll need a way to delay the requests for one of the two frames (defined in the frameset) for a tiny amount of time to prevent two php.exe instances from accessing the session file at the same time. But I don't know how to do so. Javascript is no option for us and as far as I know HTML has no such mechanism. So I need another way. Perhaps sth. that delays the call of php.exe - but I/O must work on this way :) Greetings Stephan Weiher ""Jacob Kruger"" <jacobk@xxxxxxxxxxx> schrieb im Newsbeitrag news:004501c86ce6$9da6a080$6401a8c0@xxxxxxxxx >A 'corny' workaround might be to get something like the nav frame in fact >to > then load the main frame using something like JavaScript - just a > thought - > since it would in fact first have rendered before the main frame was > loaded. > > You could then also put something like a 'waiting...' notice/string in the > main frame in case one or two people's machines in fact rendered/loaded > the > two frames in the wrong order. > > Stay well > > Jacob Kruger > Blind Biker > Skype: BlindZA > '...Fate had broken his body, but not his spirit...' > > ----- Original Message ----- > From: "Stephan Weiher" < > stephan@xxxxxxxxxxxx> > To: < > php-windows@xxxxxxxxxxxxx> > Sent: Tuesday, February 12, 2008 12:06 PM > Subject: Concurrency issue on session file on harddisk -- PHP Windows Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php