Multi instance upgrade

Hi everybody,
The MSDN documentation says that to create multi instance installation
the instance transforms that change product code should be used and
actually this should be sufficient. But following this scenario I have a
problem on major upgrade.
Let say I have two instances installed on the computer and want to
update one of them using major upgrade. The first release uses one
upgrade code and two instance transforms that actually change product codes.

In the second release I populate Upgrade table with the upgrade code of
the first release and during the run of FindRelatedProducts action the
ActionProperty is filed with two products codes of two instances of
first release. Thus the action RemoveExistingProducts removes two
instances of the first release.

The question is how to avoid removing the second instance?

Thank you.

"Fyodor Koryazhkin" <fyodorkor@gmail.com> wrote in message
news:unyBg%23kuKHA.4492@TK2MSFTNGP05.phx.gbl...
> Hi everybody,
> The MSDN documentation says that to create multi instance installation the
> instance transforms that change product code should be used and actually
> this should be sufficient. But following this scenario I have a problem on
> major upgrade.
> Let say I have two instances installed on the computer and want to update
> one of them using major upgrade. The first release uses one upgrade code
> and two instance transforms that actually change product
> codes.
> In the second release I populate Upgrade table with the upgrade code of
> the first release and during the run of FindRelatedProducts action the
> ActionProperty is filed with two products codes of two instances of first
> release. Thus the action RemoveExistingProducts removes two instances of
> the first release.
> The question is how to avoid removing the second instance?
> Thank you.

Did you try modifying the ActionProperty value so that it only has the
ProductCode of the instance you want to remove? If you do this before
RemoveExistingProducts action is scheduled it shouldn't know about the
second instance and thus not act upon it.

Sincerely,
Adrian Accinelli

Your system does not have ActiveX installed. It was sold entirely to Adobe
Inc. Call them! (not the macromedia team)

"Fyodor Koryazhkin" <fyodorkor@gmail.com> wrote in message
news:unyBg%23kuKHA.4492@TK2MSFTNGP05.phx.gbl...
> Hi everybody,
> The MSDN documentation says that to create multi instance installation the
> instance transforms that change product code should be used and actually
> this should be sufficient. But following this scenario I have a problem on
> major upgrade.
> Let say I have two instances installed on the computer and want to update
> one of them using major upgrade. The first release uses one upgrade code
> and two instance transforms that actually change product codes.
>
> In the second release I populate Upgrade table with the upgrade code of
> the first release and during the run of FindRelatedProducts action the
> ActionProperty is filed with two products codes of two instances of first
> release. Thus the action RemoveExistingProducts removes two instances of
> the first release.
>
> The question is how to avoid removing the second instance?
>
> Thank you.