Cannot play due to "read only archive"

[hugo_slith]

Yesterday I installed the game (in fact, both Wacht am Rhein and The Longest day) and after it, I played normally. But today, when I have tried to play again and I clicked twice in the "autorun" icon, it has appeared a window saying:

"The application directory is read-only"
"Please change the attributes before running Close Combat"

I´m running Windows Vista, and I´m the Administrator.

So, I have checked it. And I have found that the game directory is marked as read-only with a green square. I´ve tried to change it, but even though I unmarked the green square, the problem went on and when looking again the "read-only" option, it was marked again. I have tried with CCE.exe... no way. I have tried with the direct access icon... no way.

No way neither Longest Day nor Wacht am Rhein.

Any suggest? Thanks.