question

WimGoeminne-1290 avatar image
0 Votes"
WimGoeminne-1290 asked WimGoeminne-6637 commented

IIS Application pools version SCCM CB

Hi,
We are running SCCM CB on Server 2012R2 and I was wondering if there is a specific recommendation for the .NET versions of the Application pools.
99993-capture.jpg


Why are a lot of pools still on version 2.0 and should we change that to v4.0?

Thanks,
WiM

windows-server-iis
capture.jpg (69.4 KiB)
· 2
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

SCCM pools should be left untouched. Changing the .NET CLR version can break existing functionalities because the version of SCCM you use is old and probably not tested/supported on .NET 4.x.

0 Votes 0 ·

Lextm,

we are using SCCM CB (2006), so not an old or unsupported version.
Our environment was upgraded from to SCCM 2012 to SCCM CB 5 years ago. Our siteserver is running .net4.8


Thanks

0 Votes 0 ·

1 Answer

SamWu-MSFT avatar image
0 Votes"
SamWu-MSFT answered WimGoeminne-6637 commented

Hi @WimGoeminne-1290

The AppPool's .NET CLR Version is different from the .NET Framework Version.

The .NET CLR Version 4.0 is the CLR base for the following .NET Framework Versions:

4, 4.5, 4.6, 4.7, 4.8, so having a .NET CLR Version of 4.0 just means you support the above Frameworks, which will run under their deployed framework version.

The .NET CLR Version 2.0 is the CLR base for the following .NET Framework Versions:

.NET Framework 2.0, .NET Framework 3.0, .NET Framework 3.5.

As for the choice of 2.0 or 4.0 depends on the version of .NET does SCCM use, usually SCCM uses .NET Framework version 4.5 or later, so I suggest you use v4.0.


If the answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

If I understand correct, we can safely change to version 4.0 in our environment. Do we get any benefit on changing this?
Background info: we are currently struggling with some agents in SCCM talking only TLS1.2 (migrating to https only), and I came across the strongcrypto regkeys for .net and was wondering for which versions of .net we needed to forsee the regvalue (4.0 only or also 2.0)

0 Votes 0 ·