Impact on clients migrating from the .NET framework 2.0 to 3.5

Question

We have a desktop application running on several thousand client computers. We want to move from the framework 2.0 to 3.5, but we are talking about the impact on customers. I understand that 3.0 and 3.5 are additions to the structure and install service packs up to 2.0; What I want to know specifically:

• When a client updates to the latest version (forced update) and they only have a 2.0 or 3.0 frame, will Windows go and grab 3.5 invisibly in the background?
• If not, can we make this part of the installer or is it available only through Windows Update? ( Edit : we use MSI.)
• If there is no way to make the process invisible to the user, is there a website that provides step-by-step instructions?
• If the client is in a box where they do not have permission to update the framework, is there anything that can be done to keep the application working correctly?

Answer 1

If you use the MSI installer for your application, it will try to install 3.5 for them.

If you are not using MSI, tell them to go here: http://www.microsoft.com/downloads/details.aspx?FamilyId=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=en

Then download and install.

If they do not have administrator access, they need it.

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