problem Installing SW 2009 SP0.0

I was trying to install SW 2009 SP0.0 X64 for the first timeon Vista.
and during the first steps i got a strange Window for theinstallation source files and I Choose the DVD and I received theMessage in the attached Screen Shot. this is the first time for meto see this message could an one help me please because I can'tinstall 2009 With this Problem.SolidworksAdministration