CompanionLink build 4006 issue with ACT 2005+
From CompanionLink Support
An issue with certain installs of CL build 4006 can cause problems when attempting to configure and sync with ACT! 2005 and higher. These problems may be any of the following: CompanionLink unable to sync with ACT!. Unable to read the ACT! db in the CL config wizard. CompanionLink repeatedly prompts the user to install certain files when configured for ACT!/BB6. Error: "The data area passed to a system call is too small"
The fix is to uninstall CompanionLink, then reinstall the latest build from our website.