Php.ini para sesiones

[dagui]

Hola a todos.

Sigo con las sesiones y todavía no lo logro.

La parte de sesiones en mi php.ini, es la siguiente:

[Session]
; Handler used to store/retrieve data.
session.save_handler = files

; Argument passed to save_handler. In the case of files, this is the path
; where data files are stored. Note: Windows users have to change this
; variable in order to use PHP's session functions.
session.save_path = C:\php3\sesiones

; Whether to use cookies.
session.use_cookies = 1


; Name of the session (used as cookie name).
session.name = PHPSESSID

; Initialize session on request startup.
session.auto_start = 0

; Lifetime in seconds of cookie or, if 0, until browser is restarted.
session.cookie_lifetime = 0

; The path for which the cookie is valid.
session.cookie_path = /

; The domain for which the cookie is valid.
session.cookie_domain =

; Handler used to serialize data. php is the standard serializer of PHP.
session.serialize_handler = php

; Percentual probability that the 'garbage collection' process is started
; on every session initialization.
session.gc_probability = 1

; After this number of seconds, stored data will be seen as 'garbage' and
; cleaned up by the garbage collection process.
session.gc_maxlifetime = 1440

; Check HTTP Referer to invalidate externally stored URLs containing ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
session.referer_check =

; How many bytes to read from the file.
session.entropy_length = 0

; Specified here to create the session id.
session.entropy_file =

;session.entropy_length = 16

;session.entropy_file = /dev/urandom

; Set to {nocache,private,public} to determine HTTP caching aspects.
session.cache_limiter = nocache

; Document expires after n minutes.
session.cache_expire = 180

; trans sid support is disabled by default.
; Use of trans sid may risk your users security.
; Use this option with caution.
; - User may send URL contains active session ID
; to other person via. email/irc/etc.
; - URL that contains active session ID may be stored
; in publically accessible computer.
; - User may access your site with the same session ID
; always using URL stored in browser's history or bookmarks.
session.use_trans_sid = 0

url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeent ry"



********************
Y cuando hago session_start(), me da este error:

Warning: open(/tmp\sess_fad3110a5d94244753159bb6241a5afa, O_RDWR) failed: No such file or directory (2) in c:\mis documentos\php archivos\nuevo philips\sistema\funcionesPHP.phtml on line 55


*******************
Seguro tiene algo que ver con el php.ini. La carpeta C:\php3\sesiones si existe y tiene todos los permisos.


Qué tengo que cambiar.

Gracias de nuevo por la atención.

NOTA: En verdad estoy desesperado con esto de las sesiones.