[rabbitmq-discuss] Detect already installed version of RabbitMQ and Erlang during setup

[Silverby, Patrik]

Hi,

Is there a way that the RabbitMQ and Erlang installation can be detected by an installer to determine if they should be installed or not? I would like to include Erlang and RabbitMQ as prerequisites to my installer. I would like the installation of the prerequisites to be conditional. So far I have found these entries in the registry (running Windows 7 x64):

HKEY_LOCAL_MACHINE\SOFTWARE\Ericsson\Erlang\ErlSrv
HKEY_LOCAL_MACHINE\SOFTWARE\Ericsson\Erlang\ErlSrv\1.1\RabbitMQ
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ericsson\Erlang\5.9.3.1

Is the presence of these entries reliable to use?

/Patrik Silverby








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