Solution : https://service.sap.com/sap/support/notes/534629 (SAP Service marketplace login required)
Summary : 
      Errors have been detected in SAP BW front-end programs including Business Explorer Browser, Analyzer, and Map, as well as the OLE DB for OLAP Provider. This is identified on installations of BW 2.0B/2.1C front-end versions. SAP has announced that BW 2.0B/2.1C front-end patch 18 will be available on February 17, 2003, via SAP Service Marketplace, incorporating all prior fixes. Starting with patch 8, a new procedure for installing Support Packages has been established, detailed in note 361222. It's recommended to use the latest available SAP GUI patch, with a minimum specified version provided. Download instructions and further patch distribution methods are available through the Service Marketplace.
Key words : 
sap business explorer web application designer, sap gui patch number mentioned, 0b/binary patches/sap gui, downloading bw front-end patches, select sap bw/sap bw 2, download bw front-end patches, 0b front-end patches, bw front-end programs, 0b front-end patch 8, 0b front-end patch 18
Related Notes : 
       
| 606278 | BW 2.0B/2.1C front-end patch 21 | 
| 558955 | |
| 517232 | Error message 'Key already associated with an element' ... | 
| 512272 | BEx Browser generates CPIC 020, SAP 223 entries | 
| 452322 | Customizing of the progress bar in BEx Analyzer | 
| 361222 | SapPatch: Importing GUI Patches | 
| 309281 | BW 2.0B frontend installation of patches | 
| 197460 | BW Frontend Checktool sapbexc.xla | 
| 96885 | Downloading front end patches |