If the Unify Desktop Extension auto upgrade fails, use this link to manually download the upgrade installer: http://unify.webgility.com/content/UnifyExtensionInstaller.zip. Once downloaded, unzip the contents to a folder.
Ensure that the current version of the Unify Desktop extension is closed and not running. Then Go to : C:\Webgility\UnifyExtension\XML and copy and paste the apiconfig.xml file in a safe place (removable disk, documents folder, dropbox, google drive etc etc). This step will create a backup of the settings file.
Once done, Locate the downloaded upgrade and DoubleClick on the .exe file inside to run the upgrade installer.
Follow the Steps below to install the Desktop Extension upgrade.
Once done, go back to C:\Webgility\UnifyExtension\XML and restore the file you copied by pasting the file in the same folder that you copied it from. This will over-write the new file with the file you backed up and will restore your settings. You can now launch the Unify Desktop Extension from your desktop.