You can use the Modify option of the LabQuest Viewer Windows installer to reinstall the Bonjour software. When selecting to Modify the install, do the following:
1. Select the Bonjour version appropriate for your system: 32-bit or 64-bit
2. Select the option, “This feature, and all subfeatures, will be installed on local hard drive.”
Note: You cannot use the Repair option to reinstall the Bonjour software.