How do I add AC3 File Support?

[holygamer999]

I want to be able to Right-click an ac3 file and convert it to Flac. I did what it said on this page:
http://www.dbpoweramp.com/codec-central-directshow.htm

I downloaded the AC3 Direct Show Filter. I installed dBpoweramp's DirectShow filter. I couldn't see the convert option in...

[wbvn]

I have an error when converting from mp3 to wav...

"...error decoding MP3 data steam, is corrupt?"

This happens only periodically but on the same program. 2 times in 1 week. Does NOT happen on the same program on other converters on computers in the same office...just...