By now, you can find here following articles:

Dbc and Dbcax Version 3.0, Dbchx 3.1

- yet another extended DBU, developed by me , working with DBFCDX (default) and DBFNTX, with many useful features, including create/execute queries with SQL syntax. Now it has mouse and long file names support.
Here is another release of DBC, supporting DBFCDXAX and DBFNTXAX RDD (Advantage Xbase Server).
Now here is also a version, built with Harbour - dbchx 3.1 .

Query optimization

- an article about methods, allowing vastly accelerated performance of such operations, as a searching, filtration etc., with source code and sample.

Ini file reading

- function, (with source code and sample.) which can load from ini files arrays of any structure, described in natural form, codeblocks and other variables.

Mouse for Clipper applications.

-An article about adding mouse capabilities into Clipper application with source and sample.

Report engine for DOS and Windows Clipper applications

-Source and sample of report - DOS and Windows versions.

More Clipper stuff, all with source, including

- module for large text file view with possibility of printing (whole text or block),
calculator,
- utility for modifying databases using simple script, it is convenient when you need to make upgrade of your program for few or more clients.
- browse module with mouse support.