Fping 

Fping is a simple ping program, intended to be used instead of the standard ping program that comes with windows. It was first made to ping faster than once every second. Options have been added since then and fping is now a very handy tool.
ping fping pinger fast network ip tcp tcp/ip status trace route connection internet address

RFC Viewer 

RFC Viewer is a powerful RFC browsing utility for networking program and protocol developers. It parses the original RFC file, and generates a section directory tree as well as a page index for content browsing.
view rfc rfc tool rfc rfc utility rfc viewer rfc reader rfc editor browse rfc

SmartSerialMail 

SmartSerialMail allows to send e-mails automatically to a large number of recipients. E-mails can be sent using MAPI or SMTP and up to 64 threads may be used, which allows an optimal usage of your internet connection.
smartserialmailmailclientsenderfastmultithreadattachmentssmtpmapirecipients

Advanced RTF2PDF Converter 

Advanced RTF2PDF Converter is a specialized application for quickly and easily convertion RTF and TXT files to PDF documents. Simply select the text or RTF file, page properties, font, and other options, then save it as a PDF.
rtf pdf converter

Simple PDF Editor Pro 

Simple PDF Editor is a specialized application for quickly and easily creating Adobe Portable Document Format (PDF) documents. This simple utility looks like a first versions of the Word but it actually saves to the PDF format.
rtf pdf convertor

Documentation Helper 

Documentation Helper is a Visual C++ Addin which aids documentation of C/C++/IDL/ODL files. Includes support for adding appropriate sentinel #defines, and revision history
c++ visual c++ development