The applet version of Netgraph can run in any Java2-enabled web browser. It means, you need to have installed Java2 plug-in, at least version 1.5. Java2 plug-in is a part of Java Runtime Environment, which can be downloaded from http://java.sun.com/javase/downloads/.
This applet connects to server quest.ms.mff.cuni.cz as anonymous user. It implies some restrictions: although you search the whole corpus, you always get only first 100 results to your query; you also cannot save the results to the local disk.
You may connect to two servers - one of them searches in analytical trees (updated PDT 1.0), the other searches in tectogrammatical trees (PDT 2.0). Please, choose the right corpus, language of graphic user interface and window size in the following table (the automatic detection of the window size should work in most browsers):