Right of access to file !

I have a small problem on some files. Exe on my external DD (who was slave on my old computer with XP)
When I click it, I have a message saying right refused bla bla bla.

I did not know what he said about security, so I do not know how.

a solution?

thank you

Normally,. Exe files are executable programs installed, which I understand is that these programs are on a Hd that was installed in win xp, so these programs were installed on win xp so they can not work under vista simply by connecting the Hd under vista, they must be reinstalled.

Maybe a track?

http://windowshelp.microsoft.com/Win...981981033.mspx