BA4705: VHD API required for creating CSV quick restore points is not available¶
No technical support
BackupAssist Classic v15 still handles Cluster Shared Volumes (CSV) for Hyper-V in File Protection, Zip compression (File Archiving) and Legacy System Protection jobs, but not in System and Volume Backup or Cloud Backup jobs, and you should not rely on it in future versions. You may choose to use it where possible, but we cannot provide technical support or bug fixes for CSV environments. Technical support for CSV ended in November 2023.
| Error code | Product | Applies to |
|---|---|---|
| BA4705 | BackupAssist | BackupAssist |
Description¶
This error will require the assistance of BackupAssist technical support to identify the specific cause of the error and the correct way to proceed.
Resolution¶
To contact BackupAssist Technical Support and provide diagnostic information, please click on the applicable section below and follow the steps provided.

If you are using BackupAssist v9.5.1 or later
- Open BackupAssist.
- Select Help from the menu at the top of the BackupAssist console.
- Select Contact Support ... from the drop-down menu. This will open the BackupAssist - Support dialog.
- Enter the details in the fields provided.
- Make sure the Submit system diagnostics to help with your query tick box is checked. This will zip your BackupAssist settings so technical support can review these specifically for your environment.
- Select Send.
BackupAssist technical support will review your message and diagnostics, and contact you to help resolve the problem.
If you are using BackupAssist v9.5.0 or earlier
- Open BackupAssist.
- Select Help from the menu at the top of the BackupAssist console.
- Select Feedback and Support … from the drop-down menu.
- Select Contact support. This will open the BackupAssist - Support dialog.
- Enter the details in the fields provided.
- Make sure the Submit system diagnostics to help with your query tick box is checked. This will zip your BackupAssist settings so technical support can review these specifically for your environment.
- Select Send.
BackupAssist technical support will review your message and diagnostics, and contact you to help resolve the problem.
| Last updated | Created | Further assistance |
|---|---|---|
| 19th Jan 2012 | 19th Jan 2012 | BackupAssist Support page |