microsoft.net Framework

[Oivind]

I recently discovered that there were so many versions of the above
installed on my machine: 1.1; 2.0 SP1; 3.0 SP1 and 3.5. Is it really
necessary to keep them all or could I dispense with the first thre and
remain with only Microsoft.net Framework 3.5

 

[WaIIy]

I recently discovered that there were so many versions of the above
installed on my machine: 1.1; 2.0 SP1; 3.0 SP1 and 3.5. Is it really
necessary to keep them all or could I dispense with the first thre and
remain with only Microsoft.net Framework 3.5

Some (not many) programs might need a certain version.

You can read up on it, but I have the same thing and just leave it
alone.

 

[Ken Blake, MVP]

I recently discovered that there were so many versions of the above
installed on my machine: 1.1; 2.0 SP1; 3.0 SP1 and 3.5. Is it really
necessary to keep them all

Yes, if you run programs that need those versions.

or could I dispense with the first thre and
remain with only Microsoft.net Framework 3.5

No. One does not replace the others.

 

[Jim in Arizona]

Yes, if you run programs that need those versions.




No. One does not replace the others.

Actually, I believe the 3.x framework can replace the 2.0 framework since
the underlying assemblies for the 3.x framework belong to the 2.0 framework.
I recently installed the 3.5 framework (I had not yet installed the 3.0
framework) and looking in the installation folders
(C:\WINDOWS\Microsoft.NET\Framework\v3.0 and
C:\WINDOWS\Microsoft.NET\Framework\v3.5) I see that they contain no
assemblies from the 2.0 framework. Those assemblies remain in the
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727 folder.

There's a nice image for the 3.5 framework architecture. Note the 2.0
underlying framework.
http://guy.dotnet-expertise.com/PermaLink,guid,b9fcc958-079d-4523-9dbd-38bdcd9b40a2.aspx

And on MSDN: Relationship of the .NET Framework Versions 2.0, 3.0, and 3.5
http://msdn2.microsoft.com/en-us/library/bb822049(VS.90).aspx

As long as you're patched, you should be able to safely keep the 1.x
frameworks (and 2, 3, 3.5) on your system without any issues. There were a
few security fixes (in the 1.x frameworks) so do make sure you stay up to
date with your system patches and service packs.

Jim