Hello,

I have search for resources on the easiest way to upgrade the latest version of DotNetNuke to run a site under .NET 4.0 but I am not confident that my results are current as what i have found seems to date back to early 2010.  Can someone please point me in the right direction for resources on how to upgrade existing sites so that version 4.0 of the dot net framework is used on the website?

Thank's Chris.  I do not use webmatrix for my development (maybe I should?).  I still use IIS 7.0 both in my development and production environments.  After watching your video I translated that into "Change the application pool of the website to use 4.0 and that should do it...", it did.  After change the pool I revisited the site and confirmed in my dashboard that it is running 4.0...

Next I opened the project in Visual Studio 2010 and received the following notification:

"The site 'http://domainremoved.com' is currently configured for use with a newer version of ASP.NET (4.0).  This project is targeting ASP.NET 2.0; if not configured some features may make incorrect assumptions, and pages designed with the tool my not render correctly.

Would you like the site to be configured for use with ASP.NET 2.0"

If i choose yes, VS goes and changes the app pool of the IIS site to use the DefaultAppPool which is 2.0.  If I say no i continue to receive this notice every time i open my solution...

Am I on the wrong path trying to continue to use IIS for my development envionroment?  Any suggestions would be greatly appreciated; I am venturing into unknown territory for me and I want to make sure my upgrades are done consistently and correctly through the 20+ DNN websites that I manage.

I have noticed that simply changing the .NET framework version to 4.0 does not change the fact that my web.config references .NET 2.0 assemblies.  I am trying to follow an upgrade path that does not require me to open up visual studio so that i can do this to all of my production sites without using devel tools, but I still have a handful of sites i need to open in visual studio to make changes to custom modules.

Please help!

Matt Christenson

One more concern - I see in my web.config files that my handlers have a precondition of runtimeVersionv2.0 - i recall seeing concerns about this in 1 year old documentation indicating these needed to be removed... Is this true?

I recall when 3.5 came out you guys put an "Upgrade to 3.5 framework" feature into the host settings menu - is this something we might shortly see in the DotNetNuke core?