Can I block the .NET Framework via a GPO

[Harrison Midkiff]

Hello:

I need to block .NET Framework v2.0 which is now downloadable via
WindowsUpdate. I am pretty sure I can block this with a gpo. When WinXP
SP2 came out initially you could block that with a gpo.

Does anyone know how I can do that?

Harrison Midkiff

 

[Kevin Spencer]

Why would you need to block it?

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Complex things are made up of
Lots of simple things.

 

[Harrison Midkiff]

If it is applied it will break a custome app we have developed.

 

[Damien]

If it is applied it will break a custome app we have developed.

In what way? Have you actually tested this? Framework versions are
designed to live side by side, and assemblies will run against the
framework they were compiled against (unless that framework version is
not available, so I've heard recently). So unless you're doing some
freaky (probably unsupported) things with System assemblies, your
custom app should carry on working against 1.1 (or, heaven help us,
1.0)

Damien

 

[Lloyd Dupont]

If it is applied it will break a custome app we have developed.

In what way? Have you actually tested this? Framework versions are
designed to live side by side, and assemblies will run against the
framework they were compiled against (unless that framework version is
not available, so I've heard recently). So unless you're doing some

I believe that is incorrect.
I believe that, unless specified in a manifest file, the latest framework
available would be used.

 

[Damien]

I believe that is incorrect.
I believe that, unless specified in a manifest file, the latest framework
available would be used.

Okay, I've got both 1.1 and 2.0 installed on my machine. Fired up
VS2003, did a windows form project. Stuck a button on it. Compiled
(Release). Exited Visual Studio. Fired it up, and used my favourite
tool (Process Explorer from sysinternals), I can clearly see it loading
config information from the 1.1.4322 directories (Enterprise and
Security config files) and linked to the 1.1.4322 DLLs, so I strongly
believe that it's running under 1.1. It *could* be running under 2.0
and just accessing 1.1 config, but I'd expect to see some trace of it
connecting to 2.0

Damien

 

[Patrice]

It could perhaps try to run in 2.0 if only this version is available ?

Anyway my advice would be :
- if the default behavior for the runtime selection doesn't fit your needs
you could update the config file for your application to specify which
runtimes are supported

IMO it's better as you'll likely run one day in a situation where another
app needs the 2.0 runtime so isntead of blocking 2.0 based applications,
just tell those who can't run with 2.0 they shouldn't...

See :
http://msdn2.microsoft.com/en-us/library/9w519wzk for details

 

[Kevin Spencer]

If it is applied it will break a custome app we have developed.

No it won't.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Complex things are made up of
Lots of simple things.

 

[Michael D. Ober]

If their app is in Beta 2, it will break. I had the same problem. Until VS
2005 is readily available, the RTM framework needs to be blocked.

Mike Ober.

 

[Harrison Midkiff]

Patrice:

Thank you very much for your posting.

I am not the developer who wrote the application so please excuse me if I
get anything wrong. The developers have wrote their applications in v1.0 I
think. They have said there is something in 2.0 which will break there
applications. So far no one has installed 2.0. Knock on would. I followed
up on them regarding the configuration file, but they claim this would be
something they would have to do to each application. After reading the
article this just seems to be one update. Is that correct or do I have to
add this for each application?

Thanks again.

Harrison Midkiff

 

[Kevin Spencer]

Man, I have lots of both 1.1 and 2.0 apps running on the same machines all
over this office. Each uses its own version of the .Net Framework, and none
of them influences any of the others running in a different version in any
way.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Complex things are made up of
Lots of simple things.

 

[Patrice]

It should be just an update in the configuration file...

My understanding is :
- the application is 1.0
- 1.1 is currently installed

The application runs with 1.1. If 2.0 is installed, it will run with 2.0
(the latest installled as 1.0 is not present). If 1.0 were installed it
could run with 1.0.

Else updating the application config file (whihc i s external to the
application) allows to tell the applicatino it should run with 1.1 even
though 2.0 is installed...

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