Hi lordg,

I have a Windows Server 2008R2 Environment with IIS7 and PHP 5.3.
When working with php based CMS's, mainly Wordpress, it was awfully slooooow!

I thought it has something to do with slow MySQL connection issues (for the machine is also running SQL Server), so I purposely set up a Linux Server from an old PC, just to install MySQL. 

Same issue, so it was clear it had nothing to do with MySQL..

Then I checked php.ini line by line, and I found that my problem was related with this particular setting:

output_buffering = 4096

I changed it to output_buffering = Off

Now it's running like a breeze 

Thanks for suggesting to check php.ini!!