When trying to add a Windows 2003 machine under protection, the agent service crashes and the following events are seen in the agent's event viewer.
Error 1000: Faulting application agent.service.exe, version 126.96.36.199, stamp 5409cea8, faulting module alockout.dll, version 0.0.0.0, stamp 3cb59a2a, debug? 0, fault address 0x0000be2c.
Error 1026: Event Source: .NET Runtime Description: Application: Agent.Service.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.AccessViolationException
The alockout.dll , also known as "Account Lockout Tool" , is a Microsoft utility to identify applications causing AD accounts to be automatically locked.
If you had such an issue on a Windows 2003 server, and left the aforementioned dll file installed in the system, it can conflict with AppAssure when the core and agent are trying to exchange their security keys and do the authentication handshake.
To remove the ALockout.dll file from the computer