In FlashBuilder\'s compiler options (Properties->Flex Compiler), under \"Adobe Flash Player options\" there is an option for \"Use a specific version\", where you can tell it wh
We were facing the same problem at my company, and we've found the following mappings:
"SWF Version" | "Flash Player Version"
========================================
9 | 9
10 | 10.0, 10.1
11 | 10.2
12 | 10.3
13 | 11.0
14 | 11.1
15 | 11.2
16 | 11.3
17 | 11.4
18 | 11.5
19 | 11.6
20 | 11.7
21 | 11.8
22 | 11.9
23 | 12.0
24 | 13.0
25 | 14.0
Sources: