Windows server 2008 r2 + php 5.3 - installation issues

[nextp]

Good morning to all.

 

I have been trying to install latest version of prestashop 1.4.7 on IIs7 + php5.3.

I am stuck at the system compatibility screen - specifically in the section of security of the directories and sudbirectories.

 

I have given networkservice account full access to the prestashop folder within the wwwroot directory.

IISUSR also has full access.

 

I have other php based code running without any problems in the same server.

 

Could someone please give me an idea how to proceed?

 

Thank you in advance.