This is an old old script from Ed Troxel I found posted at
Creative Cow Vegas Scripts posted in 2003

Don't have a clue if it would still work in current versions of Vegas but no doubt
it can be reworked to the current API.


/**
* This script will remove all effects from selected events
*
* To use, simply select the events on which effects are to be eliminated.
*
* Written By: Edward Troxel
* www.jetdv.com/tts
* Modified: 07-23-2003
**/

import System;
import System.Collections;
import System.Text;
import System.IO;
import System.Drawing;
import System.Windows.Forms;
import SonicFoundry.Vegas;

try {

var trackEnum = new Enumerator(Vegas.Project.Tracks);
while (!trackEnum.atEnd()) {
var track : Track = Track(trackEnum.item());

//Go through the list of Events
var eventEnum = new Enumerator(track.Events);
while (!eventEnum.atEnd()) {
var evnt : TrackEvent = TrackEvent(eventEnum.item());

if (evnt.Selected & evnt.IsVideo()) {
var videoEvent = VideoEvent(evnt);
var i;
for (i=videoEvent.Effects.Count - 1; i >= 0; i--) {
var effect = videoEvent.Effects[i];
videoEvent.Effects.Remove(effect);
}
}

eventEnum.moveNext();
}

trackEnum.moveNext();
}


} catch (e) {
MessageBox.Show(e);
}