Overview:
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c) Along with this support for type of installation, win_postinstall.py script will un-register the persisting servicesservices
(PBS_SERVER, PBS_SCHED, PBS_COMM, PBS_MOM) for making user life easy.
[If the user had failed to unregister the services from system registry during previous MSI un-installation. we are taking
A new installation takes care while installing next version of MSI . by uninstalling those services
Else new MSI will just install promptly without any un-installation steps.]
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