I solved the problem.
installator epo checks the state of the system prior to installation.
Is needed. Net 2.0
If you install only net framework package (for example http://www.microsoft.com/en-us/download/details.aspx?id=21)
You MUST run Windows Update. install the updates. NET, then the installation will be OK
Setup requires CURRENT (actual). NET 2
Install the microsoft website is not enough.