There have been some significant changes from V2.7 to V3.0 and above which include the removal of dll and config files previously used to communicate SIMS-Sync with SIMS .net. You can check the version number of SIMS-Sync by going to the Help tab.
In order for SIMS-Sync to update correct you will need to do the following:
- Uninstall SIMS-Sync
- Remove the desktop shortcut
- Remove the SIMS-Sync folder from the Installation Directory; typically C:\Program Files
- Re-install SIMS-Sync: http://downloads.alfiecloud.com/SIMS-Sync.zip
All of your old settings will remain as these are stored in the Users area on the machine, away from the installation directory.