Upon installation of the IBDR (Infrascale Backup & Disaster Recovery) backup agent and configuration of a DR Image backup job on a Windows system it may fail with the following error message:
"Could not load file or assembly 'AlphaVSS.x64.dll' or one of its dependencies. The specified module could not be found."
Below is an example of the job message log:
BeforeJob: run command "/raider/etc/runBeforeJob.sh 225 TEST:Imaged.YYYY-MM-DD_08 8FC1E97C-416F-F73B-1298-A3B13EEF88DD Backup Full" Requested [Standard] DR engine. Checking client DR engine configuration... Will continue with [Standard Standalone] DR engine. Starting physical backup. Level=[F], Volumes=[*] Connecting to the client [198.51.100.10] Pre-processing... Awaiting client to become available... Start backup task. State : [Running] Failed to initialize IVssBackupComponents, System.IO.FileNotFoundException: Could not load file or assembly 'AlphaVSS.x64.dll' or one of its dependencies. The specified module could not be found. [ApplicationException] - Execution failure: bad exit code [-1] 0xFFFFFFFF; Please refer to system logs for more details; See more details in client logs. State : [Terminated]
Our backup agent requires redistributable Visual C++ runtime library packages to perform a DR Image backup job. The error is the result of Microsoft Visual C++ Redistributable missing from the system.
To resolve, download and install Microsoft Visual C++ Redistributable for Visual Studio from Microsoft's website:
Note: The version (x86 or x64) of this package should be the same as the backup agent. For example, if you installed the x64 version of the backup agent, then install the x64 version of the Microsoft Visual C++ Redistributable.