Why is the activation dialog appearing even when the spirometer is connected?

In some situations Software activation window might appear while a study is opened in MSS versions 4.5-4.7 . 

In MSS versions 4.5-4.7 activation logic has a timing issue, which may appear when opening a study. This Issue is corrected in MSS version 4.8. Upgrading to version 4.8 or newer is the recommended solution. 

To avoid the situation in the older versions start the Measurements and Results (c:\Medikro\Spiro2000\Spiro2000.exe) before opening a study. This will ensure that the software is activated properly before the study is opened.

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