Uninstall vsto file

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Have a good day,. Hi Tom.. Should this batch file be part of my install or outside of my install and then the user will need to click on this batch file instead of on the MSI file. If present trigger uninstall can you please point me on how to do this. I tink there no reference for you. And in my aim, this batch file is an individual file.

If you put the batch file into the msi project it will lost its function, I mean that msi will check producet id before your batch file run and we will can't remove the producet first. I have set all the options discussed in the link. Following are the values that i set for the properties in setup project.

But when i try to install the newer version on top of old version, it does not prompt me with any message. It just installs the newer version, but when i launch the application i still see the older version which means the dll's in the GAC are not changing. After some more analysis i found that, registry is getting updated and the files in the program files folder have changed to the new version.

So the only thing remaining is the dll's which i am putting in GAC. These are not getting overwritten. Now one last thing would be to prompt the user with a message and giving him a choice of upgrading or not. Currently, it just overwrites the previous version without any prompts.

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