Author of this application is [Tom Poindexter]. sockspy [http://www.neosoft.com/tcl/ftparchive/sorted/net/sockspy-1.0] "watch[[es]] the conversation of a Tcp client and server", according to its quite readable README [http://www.neosoft.com/tcl/ftparchive/sorted/net/sockspy-1.0/1.0/sockspy-1.0.README]. Although "not a replacement for heavy duty tools such as 'tcpdump' and other passive packet sniffers" (Ethereal [http://www.ethereal.com/], ...), it's easy to install, configure, and launch, and pleasingly convenient for "debugging Tcp client/server programs, examining protocols and diagnosing network problems". sockspy is nearly indispensable for any network programmer or network administrator, quite apart from any interest they might have in Tcl. [[Compare to tcpdump, ...]] sockspy's a [Tk] application. [CL] has been thinking of refactoring it to expose a pure Tcl part. One benefit might be that at that point, the code could be considered as a quick-assemble toolkit for proxy servers. Write [mailto:Cameron@Lairds.com] if that interests you. ---- [Category Application]