Hi, we installed Eaccelerator last night on our server and it crashed overnight

We are running Windows Server 2003 and PHP 4.4.6 and IIS6

Our EA settings in php.ini are as follows

extension="eaccelerator.dll"
eaccelerator.shm_size="200"
eaccelerator.cache_dir="D:\phpcache\cache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
eaccelerator.keys = "shm"
eaccelerator.sessions = "shm"
eaccelerator.content = "shm"

Are we missing something or is there something causing this to crash?