I double checked the php.ini file and made sure that those lines are there, but it didn't make a difference. I did add it to the .php file and I would get
"Fatal error: Call to undefined function curl_init() in H:\Inetpub\wwwroot\cisnew2\WA_eCart\WA_eCart_USPS_PHP.php on line 123"
So I assume I've missed something, but new to PHP and not sure what to look for.