In order for Livelink exporter to work, Visual J# Redistributable package need to be installed in the machine where exporter is installed. If not, exporter will throw an exception as below:
Failed downloading item from LiveLink: Could not load file or assembly 'vjslib
If you are running exporter on a 64 bit machine, more than 99 percent of the time you will need both the 32 bit and 64 bit version of libraries. In our case, the only 64 bit component is the 2010 Remote service, everything else – Exporter, Deployer, Licensing Service are 32 bit or mixed mode and will require 32 bit versions as well. If none of these help, then reinstall both x86 and x64 libraries