On July 12, 2015, Microsoft released Windows Update KB3168965. When this Windows Update is installed on a Windows 8.1 or Windows Server 2012 R2 computer together with a iTiger host that is version 5.0.0 or earlier, the Application Publishing Service fails to start. iTiger version 5.0.1, which contains many enhancements that reduce the risk of incompatibilities, is not affected.
Tiger expects to release a Compatibility Update that will fix this issue within the next week. In the meantime, customers who are affected by this incompatibility can work around the issue by uninstalling KB3168965.