Tip:
The forums are advised the LifeCam software in Windows 8.1 as follows to install:
1. Right-click the exe
2. Features
3. Under the tab "compatibility" in the drop down box "Windows 8"
4. Apply
5. install exe with a double
... Maybe. it works ... at most, like me, it did not work, so goes the Cam back today!
By the way ... there are even people who have their Windows system gedowngraded on Windows 7 to have the dashboard ... this is the current solution;)