Extractor Utility error: The file name, directory name, or volume label syntax is incorrect. (4220448)

Error when running the Extractor Utility on a LiteSpeed backup file:

Quest Software
Extractor Utility.
The file name, directory name, or volume label syntax is incorrect.

LiteSpeed could not open the Backup file: ('d:\Backup\Northwind.BAK').
The previous system message is the reason for the failure.

Command line extractor.exe must be run with double quotes, not single. The examples in the Help file show single quotes, which is incorrect.

Incorrect syntax:
C:\Program Files\Imceda\LiteSpeed\SQL Server>extractor -F'd:\Backup\Northwind.BAK' -E'd:\Backup\Native.bak' -K'password' -N1 -L2

The onscreen output when the incorrect syntax is used:
Quest Software
Extractor Utility.
The file name, directory name, or volume label syntax is incorrect.
LiteSpeed could not open the Backup file: ('d:\Backup\Northwind.BAK').
The previous system message is the reason for the failure.

WORKAROUND:

Correct syntax:
C:\Program Files\Imceda\LiteSpeed\SQL Server>extractor -F"d:\Backup\Northwind.BAK" -E"d:\Backup\Native.bak" -K"password" -N1 -L2

The onscreen output when the correct syntax is used:
Quest Software
Extractor Utility.

Successfully extracted the LiteSpeed format to the native SQL Server backup formatted files (MTF).
The extracted files can be restored with the native SQL Server restore commands.
Please consult the SQL Server documentation for the appropriate restore information.

STATUS:
Waiting for fix in a future release of LiteSpeed for SQL Server.