How can I install multiple versions of the LabWindows Development Environment on the same machine?

Question

I develop software in LabWindows for multiple customers. Often it is the case that a customer is using a backlevel version of the CVI Run-Time Engine (RTE). When possible the customer is urged to upgrade to the latest, but when they can't I must build the software targeting the older RTE. LabWindows does not support compiling for previous versions of the RTE so the work-around is to install multiple versions of the LabWindows Development Environment, and compile using whichever matches the target RTE.

How can one install multiple versions on the same machine?

Answer 1

The LabWindows installer will not permit an older version to be installed on a machine which already has a newer version on it. To get around this, the LabWindows Development Environment must always be installed in the order of oldest to newest, with the oldest version installed first.