Hi all,
I want to terminate the installation of a product unless
there is a recent version of a different product already
installed, so I defined an Upgrade element and a
Condition thus:
<!-- The other Product's UpgradeCode. -->
<?define ExecutablesCode="Some guid"?>
<!-- Minimum Product Version. -->
<?define ExecutablesVersion="13.0.13"?>
<?define RidiculouslyHighVersion="99.99.99"?>
.
.
<Upgrade Id="$(var.ExecutablesCode)">
<UpgradeVersion
Minimum="$(var.ExecutablesVersion)"
IncludeMinimum="yes"
Maximum="$(var.RidiculouslyHighVersion)"
IncludeMaximum="no"
OnlyDetect="yes"
Language="1033"
Property="REQUIREDBINARIES" />
</Upgrade>
.
.
<Condition Message="You must install ...">
REQUIREDBINARIES
</Condition>
.
.
This didn't work; the install always aborts, whether the
required product and version are installed or not.
I thought it might be a sequencing problem, so I got rid
of the Condition and defined a CustomAction and
sequenced it sequenced it so it should come some time
after FindRelatedProducts, i.e.,
<CustomAction Id="CheckForReqdBins"
Error="You must install ..."
Return="check" />
.
.
<InstallExecuteSequence>
.
.
<Custom Action="CheckForReqdBins"
After="PreventDowngrading">
(NOT REQUIREDBINARIES)
</Custom>
.
.
Same result.
I'm kind of fuzzy about the evaluation of strings as
conditions, but something analagous has worked for me
when the Upgrade is the product currently being
installed.
Assisistance appreciated.
Regards,
Lee
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