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IMAPI_E_INCOMPATIBLE_PREVIOUS_SESSION
IMAPI_E_INCOMPATIBLE_PREVIOUS_SESSION belongs to the IMAPI2FS multisession workflow. Microsoft documents it for previous-session import and for changing FileSystemsToCreate after a session has been imported. The imported file-system layout and the layout IMAPI would generate for the new session must remain compatible.
Compare imported and requested file-system layouts
- Record which file system was imported from the previous session and the current
FileSystemsToCreatevalue. - Capture whether output-format settings were changed before or after
ImportFileSystemorImportSpecificFileSystem. - Recreate the image with compatible settings rather than retrying import against the same conflicting configuration.
This is not a read error from the disc. IMAPI may successfully recognize and import the previous session, then reject a layout change that cannot be extended safely. Multisession code should establish the intended output file-system set before import and preserve it unless the API explicitly allows a compatible transition. The exact imported file system and requested result formats are the key diagnostic data.
ImportFileSystem · ImportSpecificFileSystem · FileSystemsToCreate
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