PEAR Mail $obj->send()

A client has: PHP 5.3 on Win7x64 running a local web app that needs to send mail. (This app was once hosted on a linux-based hosted space.) Apache 2.2 is installed but apparently not being used. I think the IIS service is actually the web server that is engaged. During troubleshooting a wide range of problems, I discovered that the PEAR Mail module needed to be installed. So I installed PEAR (the PEAR Installer) and the Mail module with all dependencies. The PEAR_ENV was added. The system was rebooted. A test php script instantiates the Mail class and the script proceeds fine until the send() method is called. I get a browser with "Waiting for localhost" for more than 60 seconds. (I used die(); to trace the script. Instead of 'auth'=> true, I used 'auth' => "PLAIN" as suggested by a user comment on the Mail documentation page.) I believe all the parameters are correct. The actual web app works - except emailing. I added a firewall rule allowing outbound port 465 just for kicks. I can double-check for the PHP timeout setting but would PHP timeout in this case (waiting for a socket??)? Any suggestions?