I generated a InstallShield Express 2010 setup.exe file and install the product. Then I changed the version number from 6.01.0001 to 6.01.0002, and kept the product code, upgrade code the same. When I run the new setup.exe to do the installation, I get the message "Another version of this product is already installed". How could this happen? I have already changed the version number from 6.01.0001 to 6.01.0002. Is there a way to get ride of this message?
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