I usualy do it on Sonar or Power Tracks. Load your Midi file..
do a "Track View" [from the tool bar] of the track in question eg: [drum #10] in this case. You will see all the drum notes within the song along the music scale.....just scroll to the measure with the problem and delete only the problem note[s] in question. Then re-save ....and your good to go!

Have Fun

[This message has been edited by Dnj (edited 08-20-2003).]