David Esp Video Technical Blog

Seems  .NET v4 is needed in order to support Lubbo’s Fan Control utility.

• The requirement:
  • Windows 7 already has .NET v3.5 but (as I discovered) this is not sufficient.
  • [http://sourceforge.net/projects/lubbofancontrol/forums/forum/970570/topic/3444415]
    • “The problem was fixed after I installed .NET framework 4.0 Beta for windows”
  • BUT I am not so sure now (2010-04-21) whether .NET 3.5 is really needed (3.5 might suffice).
• The solution:
  • Download ‘x64’ version of ‘.NET 4’ from Microsoft.
    • Currently the latest version (I am aware of) is:
      • .NET v4 Beta RC (Release Candidate), ‘x64’ variant:
        • [http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=a9ef9a95-58d2-4e51-a4b7-bea3cc6962cb]
          • [dotNetFx40_Full_x86_x64.exe]

Knowledge-gathering that led to the simple advice above:

• Is .NET 4 still a Beta or is it oficially supported now?
  • Appears to be a “Release Candidate”
  • An article on it (May 2009) is at [http://news.softpedia.com/news/NET-Framework-4-0-Beta-1-for-Windows-7-RC-XP-SP3-Vista-SP2-112178.shtml]
  • Informed colleague (Matt) advises it’s probably OK (or at least, risks from it are preferable to risk of motherboard meltdown from lack of fan-cooling!)
• How find out which version (if any) is installed?
  • According to [http://blogs.windowsclient.net/rob_relyea/archive/2009/07/22/windows-7-is-final-and-includes-net-3-5sp1.aspx]:
    • “Windows 7 is final and includes .NET 3.5sp1”
  • According to Microsoft [http://support.microsoft.com/kb/318785]:
    • To determine which versions of the .NET Framework are installed, locate the %systemroot%\Microsoft.NET\Framework folder. To open this folder, you can paste this address into a Windows Explorer address bar. The following folders contain the released versions of the .NET Framework:
      • v3.5
      • v3.0
      • v2.0.50727
      • v1.1.4322
      • v1.0.3705
  • Indeed, my system has v3.5
    • Folders:
      • [C:\Windows\Microsoft.NET\Framework\v3.5]
      • [C:\Windows\Microsoft.NET\Framework64\v3.5]
• If I have more than one version, will they clash?
  • No, according to informed colleague (Matt).
  • No, according to Microsoft [http://support.microsoft.com/kb/829019/]:
    • You may have several versions of the .NET Framework installed on your computer. Each version of the .NET Framework can co-exist with the other versions on the computer
      • BUT the ReadMe file for .NET 4 RC says:
        • “The .NET Framework 1.0 cannot be installed after the .NET Framework 4 is installed.  The .NET Framework 1.0 must be installed before the .NET Framework 4 is installed.”
          • HOWEVER it looks to me like that ancient version of .NET is not compatible with Windows 7.
  • Incidentally (irrelevant given the above), Windows Update only updates an existing version, it doesn’t offer it if no (previous) version is installed.
  • Download site for .NET v4:
    • [http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=a9ef9a95-58d2-4e51-a4b7-bea3cc6962cb]
      • Various versions of install-file for .NET 4 RC.
        • dotNetFx40_Full_x86_x64.exe
          • This is the one I need.
        • dotNetFx40_Full_x86_ia64.exe
          • Obsolete – relevant only to (older) ‘itanium’.
        • dotNetFx40_Full_x86.exe
          • Obsolete – 32-bit.
      • I am told that in general, if one runs an inappropriate Microsoft install-file, it will ‘complain’.
        • So no need for stress over such issues then…

This entry was posted on Saturday, March 27th, 2010 at 22:36 and is filed under Uncategorized, Windows. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.