Error: "[80070003] The system cannot find the path specified." logged by the Archive Data Loader (80752)

The Archive Manager Event Log and/or the DataLoaderWorker.exe.log contains an error similar to the following:

ERROR: XmlTextWriter.Create.CreateUnbufferedHandleStream:
[80070003] The system cannot find the path specified.

The Data Loader service cannot access a path it requires. This can be either the Attachment Store folder or the Export folder.

1. Run the Following SQL query on the Archive Manager SQL server:

USE ArchiveManager
SELECT [value] AS Path FROM config WHERE [key] = 'DataExportDirectory'

2. Make sure that the path in step 1 is a valid folder (not a file) and that the Access Control List (ACL) for the folder grants Full Control to the "ArchiveManagerServiceUsers" security group.

3. Run the Following SQL query on the Archive Manager SQL server:

USE ArchiveManager
SELECT RIGHT(s.connectionstring,LEN(s.connectionstring)-5) + '\' AS Default_Attachment_Store_Path from storagelocation AS S WHERE [default] = 1

4. Make sure that the path in step 3 is a valid share and that the ACL for both the share and the folder grants Full Control to the "ArchiveManagerServiceUsers" security group.

For more causes of Error: [80070003] please see SOL38693