code: function execIECommand( command ) {
  			var doc = editor.document,
  				body = doc.getBody(),
  				enabled = false,
  				onExec = function() {
  					enabled = true;
  				};
  
  			// The following seems to be the only reliable way to detect that
  			// clipboard commands are enabled in IE. It will fire the
  			// onpaste/oncut/oncopy events only if the security settings allowed
  			// the command to execute.
  			body.on( command, onExec );
  
  			// IE7: document.execCommand has problem to paste into positioned element.
  			( CKEDITOR.env.version > 7 ? doc.$ : doc.$.selection.createRange() )[ 'execCommand' ]( command );
  
  			body.removeListener( command, onExec );
  
  			return enabled;
  		}
docs: Tries to execute any of the paste, cut or copy commands in IE. Returns a boolean indicating that the operation succeeded. @param {String} command *LOWER CASED* name of command ('paste', 'cut', 'copy').