Try each of the following steps in order until the issue is resolved:
- Allow the installation time to complete. If necessary, run the installation after hours.
- Disable the MSIEXE.EXE file and reinstall AddressAccelerator:
- Create a new folder in the AddressAccelerator folder
- Move all existing files into this new folder
- Stop all instances of MSIEXE.EXE that are currently running in Task Manager (BB520804)
- Re-install AddressAccelerator (BB87099)