External Viewers
Menu option: Options > Preferences > External viewers
Use the External Viewers dialog box to tell dtSearch how you want your documents to be displayed. The default is to display documents using the built-in dtSearch viewers. To specify a different viewing method, click New... in the dialog box and enter a name for the application or document type, then enter one or more filename filters identifying the documents, and click on one of the three viewing options:
1. Display file in dtSearch with hits highlighted.
2. Display file in dtSearch without hits highlighted. dtSearch will display the file using Internet Explorer or an Internet Explorer plug-in.
3. Launch in the application associated with the file.