For example, at startup time, init launches the WindowServer, which launches the dock:
-+- 00001 root /sbin/init[Lines trimmed to narrow the display width]
|--- 00041 root kextd
|--- 00075 ben /System/Library/Frameworks/ApplicationServices...
|-+- 00077 ben /System/Library/CoreServices/WindowServer
| |--- 00333 ben /System/Library/CoreServices/Dock.app...
| |--- 00334 ben /System/Library/CoreServices/SystemUIServer...
pstree is in Fink's stable cvs, so use fink selfupdate-cvs; fink install pstree to install it.

