[Openal] How to get v1.1 devices on my system?

[nic at weartronics.com]

Dear OpenAL list,

I am using Windows XP and I am trying to get v1.1 devices on my system. 
I have installed the latest OpenAL v1.1 SDK and also run the installer 
which put an OpenAL.dll v6.14.357.13 in my system32 directory. But 
whenever I run the EnumerateWin32 sample all of the devices are all v1.0 
with no v1.1 support! I have also tried copying the OpenAL.dll 
v6.14.357.13 from system32 to the same directory as the EnumerateWin32 
sample, but the result is the same. Please, what step have I missed?

Thank you,

Nic