The search sequence entry dialog is shown when clicking on the  add button in the "configure search sequence" step of the exe4j wizard. Upon closing this dialog with the [OK] button, a new search sequence entry will be appended to the bottom of the search sequence list of that step.

To define a search sequence entry, you select the entry type and fill out the Detail section of the dialog which is dependent on the selected entry type. The following entry types are available:

•  Search registry
  Search the Windows registry for installed JREs and JDKs by Sun Microsystems.
•  Directory
  Look in the specified directory. This is especially useful if you distribute your own JRE along with your application. In that case, be sure to supply a relative path. Note that for path selections by means of the file chooser ([...] button), exe4j will try to convert the path to be relative to the distribution source directory.
•  Environment variable
  Look for a JRE of JDK in a location that is defined by an environment variable like JAVA_HOME or MYAPP_JAVA_HOME.