The LabTutor Suite Best Practices guide recommends that LabAuthor and LabTutor Server should not be installed on the same machine. If LabAuthor and LabTutor Server are installed on the same machine, there may be conflicts with the use of some common software elements (such as the LabTutor Kernel and the Check for Updates utility).
This information is valid for LabTutor v4.0 or later.