(See the best response by Nadrew.)
Descriptive Problem Summary: i get this problem when clicking play any game

Numbered Steps to Reproduce Problem: Reinstalled and verified files locations
This is usually caused by an anti-virus program or some other external security software preventing the pager from launching Dream Seeker.
This has never happened before
How do i fix
Best response
It's usually resolved by adding the appropriate exceptions to your security software or finding security software that doesn't act in such obscure ways.

There's nothing specific I can tell you, all security software is different.
Didnt work please help