you don't need php.exe, it sucks. rather use isapi:
LoadModule php4_module c:/programme/server/php/sapi/php4apache.dll
(load module section)
AddModule mod_php4.c (addmodule section)
AddType application/x-httpd-php-source .phps (for source files)
AddType application/x-httpd-php .php
AddType application/x-httpd-php .php3
AddType application/x-httpd-php .phtml