Vista compatibility information
Vista has a feature called Data Execution Prevention (DEP). On some computers it may happen that DEP closes the FireplaceVisualization. Then the only way to run the FireplaceVisualization is to disable DEP.Disabling DEP (Data Execution Prevention)
From the start menu, select "All Programs", then "Accessories" and right-click on the "Command Prompt" shortcut and choose "Run As Administrator". From here you can use the following command to disable Data Execution Prevention (DEP):bcdedit.exe /set {current} nx AlwaysOff
Now restart your PC.
To turn it back on again, do the same and run the following:
bcdedit.exe /set {current} nx AlwaysOn