If something stops working for a specific ThinApp, you can typically clear the sandbox for that ThinApp and it should start working again.
Before clearing the sandbox make sure you are not currently running the ThinApp in question. Next open My Computer and enter “%APPDATA%\Thinstall\” in the address bar. You should see a separate directory here for each ThinApp you have run. Simply delete the directory for the ThinApp that is having trouble and then restart the ThinApp.
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