Session Management problem

PowerStore 4 Installation Wizard
Step 1 of 8

While trying to install on my testing server C:/xampp (PC running Vista) I am unable to get past step 1 of the installation there is a red X in
Session Management
There is a problem with session management on your server. Contact your hosting provider to fix the problem. For more information, please refer to the PHP manual

I think the problem relates to session.save_path ??

Here is a copy of the contents of 'session' in my phi.ini file
session
Session Support enabled
Registered save handlers files user sqlite
Registered serializer handlers php php_binary wddx

Directive Local Value Master Value
session.auto_start Off Off
session.bug_compat_42 On On
session.bug_compat_warn On On
session.cache_expire 180 180
session.cache_limiter nocache nocache
session.cookie_domain no value no value
session.cookie_httponly Off Off
session.cookie_lifetime 0 0
session.cookie_path / /
session.cookie_secure Off Off
session.entropy_file no value no value
session.entropy_length 0 0
session.gc_divisor 100 100
session.gc_maxlifetime 1440 1440
session.gc_probability 1 1
session.hash_bits_per_character 5 5
session.hash_function 0 0
session.name PHPSESSID PHPSESSID
session.referer_check no value no value
session.save_handler files files
session.save_path C:\xampp\tmp C:\xampp\tmp
session.serialize_handler php php
session.use_cookies On On


session.use_only_cookies Off Off
session.use_trans_sid 0 0

Can anybody see what is wrong??
If someone could give me any help I would appreciate it.

Thanks
Peter