yes virtualdub will allow you to do it
open the avi file
set audio processing to "direct stream copy"
set video processing to "full processing mode"
click on filters and select the rotate filter, configure it as necessary
back in the video menu click compression and choose a codec (divx is good, go to divx-digest.com/software to find a bitrate calculator)
save the avi and you're away laughing
look at the attachments in the last two posts of
this threadpage