SAARecorder was not designed with much consideration for running multiple instances of it at the same time. Hence if a second copy of SAARecorder is launched, a warning message ("Warning, SAARecorder is already running. Are you sure you wish to launch another copy of SAARecorder?") will appear. In reality, there is probably not much risk associated with running two instances at the same time, but only limited testing of such operation has been undertaken by Measurand.
In some cases, such as when some ShapeArrays (SAAs) are connected wirelessly and others are not, it is in fact preferable to run separate instances of SAARecorder to collect ShapeArray data: one instance for the ShapeArrays that are wired directly to the PC, and the other for the SAAs that are connected wirelessly.
If multiple instances of SAARecorder are to be run, a separate installation folder for each instance should be created. This can be done simply by copying the existing SAARecorder folder, typically installed in C:\Measurand Inc\SAARecorder, to another folder on your computer. Each instance of SAARecorder is then launched by running the SAARecorder.exe file from each separate folder.