Executing xp_slssqlmaint extended stored procedure to backup a database to a location or delete a backup file from a location with unicode/multi-byte (e.g Chinese Characters) in filenames or directory path names either fails with an error;
Msg 50000, Level 19, State 1, Line 0
or the backup file is not deleted at all. You get a similar results when performing it using the LiteSpeed GUI.
This issue is resolved in the LiteSpeed for SQL Server 5.2 Service Pack 1.
The LiteSpeed for SQL Server Service Pack 1 is available on SupportLink.
Download the LiteSpeed for SQL Server 5.2 Service Pack 1 for KnowledgeBase Solution 61094 (LiteSpeed 5.2.0_SP1.zip) from SupportLink at the following location:
NOTE: To apply this service pack, you must have LiteSpeed for SQL Server 126.96.36.1990 installed. This service pack includes .MSP files for Windows 32-bit, Windows 64-bit and 64-Bit Itanium so please select according to your environment.