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junmats
Level 2
‎Jan 04, 2010 03:53 AM

Patch and Upgrade Problem

Hi! I hope someone can answer my questions. I made an installer using Basic MSI. Then also about 5 patches because of some bugs and everything. Now here are my questions:

1. Is it possible to make new installer based on the previous one, like an upgrade, but with the patched file on it and not the original files?
2. Supposed that question 1 is possible, and then I made another patch based on the new installer. But then, a user who is using the previous installer installed in his computer downloaded the patch based on the new installer and installed it. Is it a valid patch also because the new installer is based on the previous one?

Please note that I am not an installshield master and I would be thankful if someone could answer my questions.

Thanks in advance
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Lurean
Level 8
‎Jan 04, 2010 10:58 AM

It is possible to create a new installer that would behave as a major upgrade.

read http://msdn.microsoft.com/en-us/library/aa370579(VS.85).aspx
in order to get a better idea of how it works.

If the major upgrade is authored correctly then any patches made for it won't work for the previous version as the user would need to apply the major upgrade first before applying any additional updates.
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