Step 1: Free download free ASF to FLV Converter and install it.
Step 2: Open this ASF to FLV converter:
Step 3: Click 
button to input ASF files , batch ASF to FLV supported.
Step 4: under Profile selection: click download arrow, Choose: FLV video format (*.flv)
under output Folder , Click "Brower" button to select the folder you want the converted 3GP to store. (the default folder is stored under file: c:\outputFolder\)
(And after the conversion, click "Open Folder" to check the converted FLV video from ASF.)
Step 5: Click 
convert button to start convert ASF to FLV.
Then the Converting ASF to FLV process shall be looked like this
After successful converting ASF to FLV, the converted FLV files shall be stored on the folder you have previously selected.
What's New:
Here, you can download online video with the 
button, it will be easier and helpful if you want to download online video.
With the best ASF to FLV converter, not only can conve
ASF to FLV Converter is currently the best FLV video converter which can convert ASF to FLV, DivX, XviD, MP4, M4V, FLV, 3GP, ASF, RM, RMVB, MOV, ASX, MKV, OGM, SVCD, VCD, VOB to FLV. Free ASF to FLV converter is a powerful Flash Video Encoder to convert any video into SWF video and FLV streaming video formats.