For the code in the zip files I released back in 2007/10/07, I've uploaded it to SourceForge. The code can be reviewed and downloaded via Subversion. In summary, these are a series of C# routines designed for use in market trading applications.
Some of the IQFeed utilities can be used without SmartQuant libraries. The standalone IQFeed utilities are desigend to retrieve live as well as historical data from DTN/IQFeed's services.
The Sockets directory provides one mechanism for asynchronously receiving data from a socket and passing it upwards through the stack of waiting routines.
In the Trading.PatternAnalysis directory is an example of a ZigZag or PeakMatching indicator. Be aware that it is a lagging indicator, but it is good for keep track of the peaks and valleys of price movement through the day.
There are three indicators supplied in the Signals library: Darvas (currently set with aggressive signallig), Pivots (the self fulfilling floor trader signals), and TVI (which is a trade volume index indicator).
Probably the most interesting file in the SmartQuant directory is the Accumulation.cs file. It shows a mechanism for running a sliding window (based upon seconds duration) through a live series of data and obtaining some deviation, variation, mean, and Bollinger Band statistics for the window.
In the same file are some files for setting up a Microsoft SQL Server database for maintaining IQFeed mktsymbol.txt information, trading calculations, and related information.