PHP, Windows XP Home, Apache restarts!

Hello I am using - Apache 2.0.44 - PHP 4.3.4 - Windows XP Home I have written a script that executes a time consuming (...) query agains the TXT DP API (www.c-worker.ch). This API provides functionality to use text files "as" tables from a database. The script uses as well patTemplate 2.4. The system runs fine for "small" querries up to 44 min., but after around 1 hour: Apache is restarted (see snipset form the error file below): [Tue Jun 01 09:04:00 2004] [notice] Parent: child process exited with status 1 -- Restarting. [Tue Jun 01 09:04:02 2004] [notice] Parent: Created child process 3412 [Tue Jun 01 09:04:09 2004] [notice] Child 3412: Child process is running After that the MS Internent Explorer displays a error passage, that the server could be found! The log file contains a lot of "PHP Notices" for patTemplate. I have a similar behavoir with the Sun Application Server 7 and the above combination. Does anyone has an ideas what is wrong? Thanks in advance Steffen