What?... when you try to install it says 2.0!!!
Microsoft .NET Framework Version 1.1 Redistributable Package
First you enter the URL:http://www.microsoft.com/downloads/en/details.aspx?displaylang=en&FamilyID=262d25e3-f589-4842-8157-034d1e7cf3a3
then you click Download
will redirect you to http://www.microsoft.com/downloads/en/confirmation.aspx?displaylang=en&FamilyID=262d25e3-f589-4842-8157-034d1e7cf3a3
and, if don't start automatically, you can click http://download.microsoft.com/download/a/a/c/aac39226-8825-44ce-90e3-bf8203e74006/dotnetfx.exe
When you try to install, you realize that was .NET Framework Version 2.0 that you have downloaded. Not 1.1