Since IS2012 I use upgrade licenses coming up with a silver maintenance plan. It is a single user upgrade license. Now I am using IS2020R3 only on one machine. For tests I need a msi project with IS2019. Can I install and license IS2019 on another computer with my older activation code for IS2019 - without affecting my current IS2020R3 installation, especially with regard to the IS2020R3 license?
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