i need help please !!

can someone help me every time i try open my webclient a pop says Application blocked. Application blocked by security settings. Name client. your security settings have blocked a self-signed application from running Application blocked for security. the application cannot be run. and i dont know how to change it can someone please help me with this .thanks  

Here is an guide on how to fix it:
http://forum.purechaos.info/t1443-application-blocked-by-security-settings-guide#8251

+you can also download the client