Hi,
I have some questions depending on Custom Actions. I have a binary file which
is installed with a component(always installed) this file installs a service
with ExeCommand='-install' if the service is installed proper the installer
returns 0, but if this service has been installed already, the installer
returns -1, but its necessary to go on with the installation routine. But if
the exe returns anything not -1 and 0 the installation should commit a rollback
and exits. In uninstallation step the service could have been
deleted(uninstalled) before so the return code is -2 if everything is ok the
return code is 0, this should continue the uninstallation.
Is it possible to execute a custom action which executes a binary(exe) and
checks the return code? I know return ='check' checks for return code zero, but
I don't know, if it's possible to check the return values by my own.
If this is possible it will be nice to assign the return code to condition(s)
which executes custom actions or rollback(exits the installation).
So my questions are:
* is it possible to check the return code by my routines?
* is it possible to do some conditions with this return codes.
* which conditions are available for custom actions, and where to put them?
My code currently looks like that, which just checks for return code 0 and does
not even commit a correct rollback of the installation if failed(not 0):
<CustomAction Id='LauchInstall' FileKey='myexe' ExeCommand='-Install'
Return='check'/>
<CustomAction Id='LauchUnistall' FileKey='myexe' ExeCommand='-Uninstall'
Return='check'/>
<InstallExecuteSequence>
<!-- some other customs.... -->
<Custom Action='LauchInstall' After='InstallFinalize'>
NOT Installed
<!-- HERE DO SOME CONDITIONS ON RETURN CODES: or is this the wrong
place ? -->
</Custom>
<Custom Action='LauchUnistall' Before="RemoveFiles">
REMOVE
<!-- HERE DO SOME CONDITIONS ON RETURN CODES: or is this the wrong
place ? -->
</Custom>
<RemoveExistingProducts After='InstallFinalize' />
</InstallExecuteSequence>
Thanks in advance
Martin Lierschof
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