Swithing between php 5 and php 4

[Malv]

Hi I have problem with switching between phps. I have xampp light and cant find a version who alow switch like this.
Is it possible to find this version or install php 4 instead of php 5 ? I need php 4 because my cms isnt compatible with php5.

[Malv]

ok I found solution. Had to replace deprecated funcitions.