Wise Installer: reading registry entry

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I am using Wise for windows installer 5.0 to make a MSI. My doubt is can I read the registry entry from the MSI itself under HKEY_LOCAL_MACHINE..\uninstall\some_program 2.0. This some_program can be of several versions like 1.0 or 2.0 or 3.0 etc. Can I read "some_program" and store it in a property or somewhere so that I can use it to change the MSI installation GUI screens depending on the existense of this entry in the registry. I do not have access to any wisescript package editor or other softwares. Any help would be appreciated. Thanks in advance.

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Daniel Lee On

Add a system search. I forget what Wise calls this, but it should be similar and executes when AppSearch fires. I have used Wise in the past and was able to accomplish similar things.