Just want to share with you about using OpenID on IIS, it will send an error:
"Define Auth_OpenID_RAND_SOURCE as null to continue with an insecure random number generator."
So, just open /extlib/Auth/OpenID/CrypUtil.php and go to line
#23 define('Auth_OpenID_RAND_SOURCE', '/dev/urandom');
change into
define('Auth_OpenID_RAND_SOURCE', null);
and it's all done, but it will be "insecure random number generator" :p
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