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C#winform program installs automatically uninstall new version overwrite old version

Source: Internet
Author: User
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VS2005 the installation package for the WinForm program. When you install the software with a new version of the installation package on an older version of the program, you are prompted to install another version of the product. Unable to continue installing this version ... "

It is not possible to set "Removepreviousversion" to true in the installation deployment project. Or, you are prompted to uninstall the old version to install the new version: How do I set the old version to be covered when I install the new version??

1, confirm that the two version of the removepreviousversion settings are true

2. Confirm that two versions have different ProductCode and the same upgradecode

3, confirm that your system is clean, no old version of the residue ...

4, confirm that the version number of a version than the previous version of the large

C#winform program installs automatically uninstall new version overwrite old version

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