Is it possible to recompile a decompressed flash game with Sothink SWF Decompiler or JPEXS Free Flash Decompiler?

I have many games in swf format, but I want to recompile to swf in Adobe Flash CS6. The problem is that they are in ActionScript 1 and ActionScript 2, how can I recompile?

Another problem is that I have many files in .as that were extracted using Sothink SWF Decompiler, but I do not know how to recompile them all in Adobe Flash CS6 because it generates a small size of less than 500kb with syntax errors.

If anyone can answer, I'll be very grateful.