With InstallShield version 2010 Flexera Software introduced the requirement that activation of the software has to be repeated yearly. Typically this re-activation happens automatically without user interaction. However in some cases, the automatic re-activation fails and when trying to manually re-activate some users get an error message: “The license for this computer is in use on another computer. … Error 20653 – The number of activations allowed for this account has been exceeded.”
Flexera Software has documented a workaround for this problem in knowledge base article Q212463.
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