PHP site keeps opening to blank page, no errors

Question

First, the premises: PHP loaded on IIS6 on Win2003 STD R2 SP2, PHP_5213 using FastCGI, MySQL_5145.

Customer sent me the site files, which I unzipped to C:\\InetPub

Answer 1

I've worked with a few servers I didn't have full access to and some didn't have errors enabled by default. I had to call echo error_get_last() at bottom of each page.