vstr
Vstr is a safe and fast string library for C. It is designed for network communication. Its design uses blocks of ptr+length data, so adding, substituting, and deleting data are all fast operations. This model also allows it to do automatic referencing for mmap() areas of memory. ... Another big feature of the library is a POSIX and ISO 9899:1999 compliant printf() like function, which can also be extended with user supplied formatters that are gcc warning compatible. ... The total API is over 270 functions, but laid out in a easy to remember manner, including data parsing functions, a...
http://www.and.org/vstr/1.0.14/vstr-1.0.14.tar.gz - 1Mb - Download

xFunction for Mac OS X
The xFunction library is the universal solution for integration of Java code with code written in other languages, superior in many aspects to Java Native Interface (JNI). With xFunction, you no longer need to implement those ugly native methods. Instead, you extend and instantiate xFunction... Using xFunction, you may invoke any operating system API call or function from any dynamic library in a natural and convenient manner. ... All necessary data conversions and external function calls are done seamlessly by the xFunction library.
http://www.excelsior-usa.com/download/xfunction-latest-eval-macosx.zip - 101Kb - Download

xFunction for Linux
The xFunction library is the universal solution for integration of Java code with code written in other languages, superior in many aspects to Java Native Interface (JNI). With xFunction, you no longer need to implement those ugly native methods. Instead, you extend and instantiate xFunction... Using xFunction, you may invoke any operating system API call or function from any DLL or shared library in a natural and convenient manner. ... All necessary data conversions and external function calls are done seamlessly by the xFunction library.
http://www.excelsior-usa.com/download/xfunction-latest-eval-linux.zip - 101Kb - Download

xFunction for Windows
The xFunction library is the universal solution for integration of Java code with code written in other languages, superior in many aspects to Java Native Interface (JNI). With xFunction, you no longer need to implement those ugly native methods. Instead, you extend and instantiate xFunction... Using xFunction, you may invoke any operating system API call or function from any DLL or shared library in a natural and convenient manner. ... All necessary data conversions and external function calls are done seamlessly by the xFunction library.
http://www.excelsior-usa.com/download/xfunction-latest-eval-win32.zip - 177Kb - Download

NLREG
NLREG performs nonlinear regression and curve fitting. NLREG fits a mathematical function whose form you specify to a set of data values. Virtually any type of function can be fitted. NLREG includes a programming language similar to C that you use for describing the function to be fitted. ... The programming language includes a large selection of built-in library functions (sin, cos, log, exp, etc. ... ) that makes it easy to describe complicated models. ... Two dimensional line and three dimensional surface plots can be generated.
ftp://ftp.nlreg.com/nlrsetup.exe - 1Mb - Download - Screenshot

HS NTP C Source Library
HS NTP is a software library in C (supplied with full source code) which implements the client side of Network Time Protocol (NTP) over UDP socket layer according to RFC1769 and RFC1305. HS NTP Library allows a user application to synchronise local system time to remote NTP server time. ... Once HS NTP has received NTP time reply from NTP server it analyses the reply and reports the resulting time difference to user application via callback function. ... HS NTP internally at a lower layer interfaces to HS Sock library which provides UDP transport services.
http://www.hillstone-software.com/hs_ntp_demo.exe - 68Kb - Download - Screenshot

DoneEx INI-File Manager DLL
This library allows you manipulate with INI-file by the easiest way from any programming language. You can create new or load existed INI-file and manage sections and keys in it. You can produce action with sections and keys of INI-file as: - search, add, delete sections and keys - retrieve,... - Independent of additional libraries like VB Runtime library, MFC and etc. ... Especially for VB and C++ programmers we provide interface to library as class in source code. ... - API consists 23 functions.
http://www.doneex.com/downloads/inimngr.zip - 176Kb - Download - Screenshot

BlackJ Scripting Library
The Blackj library is a standard ECMA 262 3rd Edition implementation for embedded scripting in C/C++, Delphi applications. The ECMA 262 standard defines the requirements for languages similar to JavaScript or JScript. The blackj. dll library is targeted to Windows programmers and developers who... Call a function implemented in a previously loaded script and get a result Make a function implemented in your host environment available/accessible to scripts Return an array or object from a function in the host environment to the script code and vice versa Read/Delete any global property or...
http://www.archteon.com/downloads/blackjdemofull.zip - 441Kb - Download

Hook API SDK
Hook API SDK is a Software Development Kit for easy and quickly develop Windows System Wide API Hooking program. It helps you hooking Windows system functions or functions in 3rd applications, this means you can call your own functions instead of some Windows system APIs or functions of other...
http://www.hook-api.com/hooking-api.zip - 259Kb - Download - Screenshot

RF21
RF21 for Windows is a scientific calculator, plotter, programming and numeric system in one. It allows for permanent installation of a user's own commented functions and libraries. Such user functions may have one or several arguments and values. Works as an archive at the same time, with... On top of these and the user libraries, the program's numeric and plotting capabilities can be used, including: Numeric derivation and integration, Monte Carlo simulations, linear equations, matrix inversion and eigenvalues, nonlinear equation systems, n-dimensional function minimizer (Dennis &...
http://members.aol.com/rf25exe/rf21_set.exe - 1Mb - Download - Screenshot