Solution : https://service.sap.com/sap/support/notes/606099 (SAP Service marketplace login required)
Key words : 
sap business explorer web application designer bw object tags, bex query designer correct window size, sap business explorer download scheduler, bw front-end patch corrects, sap business explorer analyzer, sap business explorer browser, bw front-end patch, 0b front-end patch 08, bex query designer recognizes, web application designer
Related Notes : 
       
| 742553 | Installing BW 3.xX front-end patches | 
| 657652 | SAP GUI 6.20 Final Compilation 5 with BW 3.0B front end | 
| 653950 | BW 3.xX Front-End Patch 11 | 
| 647405 | Runtime error Method '~' of object '~' failed - BW Frontend | 
| 634050 | Non-BW objects in the Web Application Designer (WAD) | 
| 613249 | BW object tags in HTML comment areas | 
| 612020 | Incorrect window size in FEP 7: Conditions + exceptions | 
| 611582 | Use of iFrames in the Web Application Designer (WAD) | 
| 558994 | General information on BW front-end patches | 
| 558914 | BW 3.1C: Dates for front-end patches | 
| 558912 | Planned release dates of the FEPs for BW 3.x | 
| 542961 | Business Explorer Analyzer loses BW connection |