Unable to load dynamic library mySQL /i due to incorrect access to memory

["Jan Bro" <janbro@xxxxxx>]

Hello List,

for the last few days I've been trying to migrate my old Laptop to my new 
system.
Therefore I installed the new Apache 2.0.59 + php 5.2.3 + mysql 5.0.41 on my 
winxp prof sp2 system (DELL Intel Core Duo). Hope I didn't forget anything.

Now the libmysql.dll is placed in the system32 directory the mysqli.dll and 
mysql.dll are in the ext directory and that is correctly shown in phpinfo();

Other extensions are correctly shown,
what is not listed is MySQL (which is by the way up and running).

The log files of the apache show for eache start / restart of the server:
PHP Warning:  PHP Startup: Unable to load dynamic library 
'C:\\Programmierung\\PHP\\ext\\php_mysql.dll' - Unzul\xe4ssiger Zugriff auf 
einen Speicherbereich.\r\n in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 
'C:\\Programmierung\\PHP\\ext\\php_mysqli.dll' - Unzul\xe4ssiger Zugriff auf 
einen Speicherbereich.\r\n in Unknown on line 0

the German part states "incorrect access to memory". I know there is a 
little feature from M$ to prevent certain code from being executed, that I 
disabled (by editing the boot.ini), but still I receive that message.

I've replaced the .dlls with the actual .dlls I got from MySQL, but still.
I'm using the correct php.ini according to phpinfo();
I've adressed this issue to the German Newsgroup for Apache but nobody there 
gave me a feedback.
What can I do?

thx
Jan