Hello everyone. I need help

When I convert my .FLV files to .WMV, my audio gets delayed more and more the further I get into the video, and thats not fun.

So, I need to find a way to convert a .FLV file to .WMV without getting audio delay.

I have tried many programs to see if they could remove the delay, but without any luck.

So please ppl. I really need your help.