Fixing Dotnet problems


Microsoft Windows Updates always brings Dotnet upgrades and fixes that are at least challenging to the Windows environments users have on their computers.
Most recently Microsoft came up with a Dotnet 3.5 upgrade that has caused some serious issues with applications based on Dotnet or that use Dotnet one way or the other.
For instance: Microsoft Office uses Dotnet 1.1 and 2.0 and if you remove one or the other it will cause issues on any of its suite products such as Word and Outlook. QuickBooks, Dymo Stamps and Adobe Acrobat are other applications that are affected by Dotnet.
Recently I had an issue with Dotnet 3.5 not installing and when I performed a fix (removing 3.5 and 2.0 and reinstalling 2.0 3.5, and 3.5 SP1) I had nothing but problems with the applications described above. The best solution so far was to remove 3.5, 2.0 and 1.1, (I used Dotnet cleanup tool for that task, available from Microsoft), rebooting the machine each time and reinstalling one at the time in the following order:
Dotnet 1.1
Dotnet 1.1 SP1
Dotnet 2.0
I decided not to install Dotnet 3.5 nor the SP1 for 3.5 until Microsoft fixes whatever is wrong with their latest Dotnet fiasco.
With this approach all the applications are no longer crashing during their opening and machines are stable once again.

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