Aviplo 0 Light Poster

The following message came up when I tried to instal .net 2.0 on the window 7

'An error occurred during the installation of assembly. policy Microsoft.VC80.ATL.type="win32".version="8050727.1"."publicKeyToken"="1fc8b3b9a1e18e3b".processorA rchitecture="X86"'.

Does anyone have any idea how to solve this problem?