1. First declar variable like this

var
  asyncHelper : TAsyncCallsHelper;

implementation


2. constructor in initialization part,like this

initialization
  asyncHelper := TAsyncCallsHelper.Create;

finalization
  asyncHelper.Free;
  asyncHelper := nil;

3. Set all cnpack enhanced - enable

4. select asyncHelper and chose "Search For Usages...". it is appear window like this



when click on constructor line in dialog "Search For Usages..." , editor not locate text.