Some programs does'nt work if there is no netframe that is installed in your computer...
ex.nero 9 can't run if there is no netframe 3.0
you can download netframe 1.1 here:
----> http://www.microsoft.com/downloads/details.aspx?familyid=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en
netframe 2.0
----> http://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en
netframe 3.0
----> http://www.brothersoft.com/microsoft-.net-framework-80405.html
netframe 3.5
----> http://www.microsoft.com/downloads/details.aspx?FamilyId=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=en