I am currently using PHP5, apache latest version. Just installed litespeed standard edition, which is using PHP4. Can you provide details on how I can configure? 1. Use PHP5 instead of PHP4 2. Configure my sites to use Litespeeed (disable apache) 3. Configure eAccelerator I gone through some documentation, but all these are to download the latest php and configure. I already have one installed, so looking for instructions to use php5. Same as with eAccelerator (it is already configured for apache). I want to see the performance differences before completely switching to litespeed. I took the performance measurements via apache's ab tool, so I will compare it to litespeed. Thanks, Edit: I installed WHM plugin also if it makes any difference.