Capture filter: it allows the user inserting a run-time filter; syntax is the one of WinDump (http://netgroup-serv.polito.it/WinDump/).
Advanced filter: this button opens the Select Filter Dialog Window; the name of chosen filter appears in the edit box. Only packets satisfying the filter are saved in the capture document.
Overwrite current...: the new capture will overwrite current opened capture document. This control is disabled if there are not any opened documents.
Start: it starts the capture session; a window, which describes the capture status, appears on the screen:
Choose LAN adapter: it opens the dialog to choose the adapter used in the capture session. By default Analyzer opens the default adapters (settable in the Setup menu).
Advanced settings: it opens the Advanced Capture Settings Dialog Window, to select advanced parameters used in the capture session.