Hopefully you can help diagnose the response below:

Array
(
[url] => "http://www.zen-cart.com/testcurl.php"
[content_type] => text/html
[http_code] => 200
[header_size] => 139
[request_size] => 174
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 18.302
[namelookup_time] => 0.278
[connect_time] => 0.29
[pretransfer_time] => 0.29
[size_upload] => 0
[size_download] => 2142
[speed_download] => 117
[speed_upload] => 0
[download_content_length] => 0
[upload_content_length] => 0
[starttransfer_time] => 18.302
[redirect_time] => 0
)

The problem being the 18 second total load time. I'm not sure if this would be something in the Zen cart configuration or in IIS7. Doesn't appear to be network related; all pings/tracerts come back with minimal latency.

Are there any key spots in the IIS7/Curl configuration I should check that would cause slow communication with the Zen server?

Thanks