Setup project - Another version is already installed... error

J

james

Not sure if this is the right group, but anyway. I've built a setup project
in vs2005 to install my program. All works fine, until I issue an update. If
anyone tries to install it, they get the error "Another version of this
product is already installed". They then need to go to Add/Remove programs
to uninstall before trying again.

I did find a workaround of changing the product code in my setup project,
and then they can install it, but this also adds a second copy into the
add/remove programs list so it's not very useful after all.

I did some googling and found reference to REINSTALLMODE=vomus - but where
do I put this? Or is this an installshield thing instead? I assume the
problem I am having is .msi specific. Any clues?
I've got "RemovePreviousVersions=true" but that doesn't help.

James.
 

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