Error al instalar apc

[C2am]

Buenas a todos
Tengo un problema.
Al acceder a la pagina /config.php o ingresar al /app_dev/.. luego de configurar la extension php_apc.dll me salen errores como:

Fatal error: Call to undefined method ComposerAutoloaderInit842726e331d65c37eff80d198999 5608::getLoader() in...

En algun momento funciona pero luego el servidor tira un error y se apaga.
Supongo que en algo le estoy errando, así que me pueden indicar como instalar correctamente php_apc.dll para solucionar esto que recomiendan:

"1 - Install and enable a PHP accelerator like APC (highly recommended)"

Log de apache:

Código Apache:

[Fri Jun 27 01:45:09.333800 2014] [mpm_winnt:notice] [pid 4188:tid 224] AH00428: Parent: child process exited with status 3221225477 -- Restarting.
[Fri Jun 27 01:45:27.773800 2014] [core:warn] [pid 428:tid 224] AH00098: pid file D:/xampp/apache/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run?
[Fri Jun 27 01:45:28.592800 2014] [ssl:warn] [pid 428:tid 224] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Fri Jun 27 01:45:28.754800 2014] [mpm_winnt:notice] [pid 428:tid 224] AH00455: Apache/2.4.3 (Win32) OpenSSL/1.0.1c PHP/5.4.7 configured -- resuming normal operations
[Fri Jun 27 01:45:28.754800 2014] [mpm_winnt:notice] [pid 428:tid 224] AH00456: Server built: Aug 18 2012 12:41:37
[Fri Jun 27 01:45:28.754800 2014] [core:notice] [pid 428:tid 224] AH00094: Command line: 'd:\\xampp\\apache\\bin\\httpd.exe -d D:/xampp/apache'
[Fri Jun 27 01:45:28.757800 2014] [mpm_winnt:notice] [pid 428:tid 224] AH00418: Parent: Created child process 2912
[Fri Jun 27 01:45:30.884800 2014] [ssl:warn] [pid 2912:tid 236] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Fri Jun 27 01:45:35.400800 2014] [mpm_winnt:crit] [pid 428:tid 224] AH00419: master_main: create child process failed. Exiting.
[Fri Jun 27 01:45:50.578800 2014] [ssl:warn] [pid 4744:tid 224] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Fri Jun 27 01:45:50.730800 2014] [mpm_winnt:notice] [pid 4744:tid 224] AH00455: Apache/2.4.3 (Win32) OpenSSL/1.0.1c PHP/5.4.7 configured -- resuming normal operations
[Fri Jun 27 01:45:50.730800 2014] [mpm_winnt:notice] [pid 4744:tid 224] AH00456: Server built: Aug 18 2012 12:41:37
[Fri Jun 27 01:45:50.730800 2014] [core:notice] [pid 4744:tid 224] AH00094: Command line: 'd:\\xampp\\apache\\bin\\httpd.exe -d D:/xampp/apache'
[Fri Jun 27 01:45:50.733800 2014] [mpm_winnt:notice] [pid 4744:tid 224] AH00418: Parent: Created child process 5708
[Fri Jun 27 01:45:52.981800 2014] [ssl:warn] [pid 5708:tid 236] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Fri Jun 27 01:45:53.104800 2014] [mpm_winnt:notice] [pid 5708:tid 236] AH00354: Child: Starting 150 worker threads.
 

Busque por la red, he visto que en general los pasos son los mismos.


Alguien que me oriente un poco, gracias

[hhs]

lo mas probable es que no este bajando el dll correcto para tu versión de php y windows.
Te sugiero que revises en la pagina de xamp y busca si esto es un problema conocido

[C2am]

gracias por tu respuesta, voy a indagar al respecto.

[cluster28]

Yo también estuve a tortazos con el APC en Windows y no conseguí ponerlo. Al final me pasé a Linux que es lo mejor para Symfony2