1)   Nevo flv Video Converter 2.3.4
Nevo flv Video Converter is an all-in-one software which can converter Video format files including AVI, MP4, MPEG, WMV, XviD, H.264, DAT, MOV, ASF to flv file

 2)   Sothink Quicker+Encoder Suite 2.9
The bundle contains a solution to make professional flash movies, and an encoder to convert standard Video files into low bit rate Flash movies.

 3)   3Q FLV Video Converter 2.1.0.1
3Q flv Video Converter is an all-in-one software which can converter Video format files including AVI, MP4, MPEG, WMV, XviD, H.264, DAT, MOV, ASF to flv file

 4)   Sothink FlashVideo Encoder 1.1.50913 1.1 Build 50913
Sothink FlashVideo Encoder converts standard Video files into low bit rate Flash movies-----SWF or FLV file, and extracts the audio and image files from the video. How easy the conversion process becomes with Sothink FlashVideo Encoder!