Error received when installing LiteSpeed onto a 64-bit server:
"Unable to setup 64 bit on server. Msg 17750, Level 16, State 0, Procedure xp_backup_database, Line 1
Could not load the DLL xpSLS.dll, or one of the DLLs it references. Reason: 193(%1 is not a valid Win32 application.)"
Downloading and installing the incorrect bit level of the .msi file for LiteSpeed application.
Download and install correct bit level version appropriate to the bit level version of Microsoft SQL Server application. The latest version of LiteSpeed for SQL Server can be downloaded at: http://support.quest.com/support_download/Downloads.asp.
NOTE: This error message may be displayed for the following .dll files: xpSLS.dll, xpLogShipping.dll, xpSLSImportStats.dll.
Refer to Microsoft Article "Adding an Extended Stored Procedure to SQL Server":
Applicable for Versions 4.0x and 4.5x of LiteSpeed for SQL Server.