I've downloaded

eAccelerator 0952 for PHP 5.2.5
eLoader 0952 for PHP 5.2.5

and 0952_final_useful _files.zip

I tried to encode a file with encoder.php and the
file was encoded, but when I open it in browser
I get this message:

Fatal error: Invalid opcode 40/1/8. in C:\..\eaccelerator\prova_en.php on line 2

I think Apache is well configured, cause it doesn't show any error

My conf is Apache/2.2.6 (Win32) PHP/5.2.5 and from my php.ini:

[eAccelerator]
extension=eaccelerator.dll
;eaccelerator.shm_size = "0"
eaccelerator.cache_dir = "C:\Web_Pg\tmp"
eaccelerator.enable = "1"
eaccelerator.optimizer = "1"
eaccelerator.debug = "0"
;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_and_disk"
eaccelerator.sessions = "shm_and_disk"
eaccelerator.content = "shm_and_disk"
;eaccelerator.admin.name =
;eaccelerator.admin.password =
extension=eloader.dll

Does anyone have any ideas?