Hi Francois,
Please open the Services snap-in (Control Panel | Administrative Tools | Services) and check whether the services list contains the AQtime 7 Service (x64) item. If this item exists, try to start it and check whether it can be started.
If the service exists and can be started, please try to reproduce the problem with another C# application. For example, you can use one of the sample applications shipped along with the tool. They are located in the c:\Users\Public\Documents\AQtime 7 Samples\ folder.
Also, please check whether you can reproduce the problem with Performance, Allocation and Exception Trace profilers.
Let me know your results.
