Windows 7 - allowing full version to install over light version

I have a product that comes in a full version and a light version for
trial. I would like the full version to be able to overwrite the light
version, but it won't do that by default, but instead says "Another
version of this product is already installed" when running it.
Currently, UpgradeCode, ProductCode, and Version are the same.

To tell you the truth, I just wish any version could overwrite any
other version regardless of version number, light/full, etc. For
instance, if the user wishes to downgrade, they should be able to
instead of needing to go into control panel and remove the newer
version first. It is a simple product with no dependencies or shared
components.

Any thoughts on these things appreciated.

  Dennis Bareis replied...

Have a look at the "Upgrade" table as you can do
this:

http://msdn2.microsoft.com/en-us/library/aa372379.aspx

It does however only work if the installs are of the same type,
both per-user or per-machine.

Bye,
Dennis
Dennis Bareis [Microsoft MVP] (dbareis@KillSpam.gmail.com)
http://dennisbareis.com/
Freeware Windows Installer creation tool (+ "ORCA automation"):
http://makemsi.dennisbareis.com/

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