C Library

HS POP3 Library
Free - Hillstone Software

HS POP3 is a software library in C (supplied with full source code) which implements the client side of Post Office Protocol Version 3 (POP3) over TCP socket layer according to RFC 1939. Among other features, the library supports user authentication, reception of basic internet headers and text, message deletion and statistics. HS POP3 Library incorporates the necessary state machine, transparency procedures, server response processing etc.

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HS NTP C Source Library
Free - Hillstone Software

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.

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XD++ Diagrammer Professional Edition
Free - ucancode software

XD++ MFC Library Professional Edition is an MFC extension library that allows you to create the most advanced user interface in the world. It combines easy of use and very powerful feature set implemented by highly customizable collection of MFC extension classes,The library core is built on our proprietary technology that enables us to implement such complicated and not-found-anywhere features like fully advanced User Interface and WYSIWYG mode

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HS X.25 C Source Library
Free - Hillstone Software

HS X.25 is a software library in C (supplied with full source code) which implements ITU-T recommendation X.25 - Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit. Includes HsDL (Data Link) and HsSock (Winsock interface) for X.25 over IP applications (XOT))

universal, custom, tftp, html, toolkit, song, win32 serial, win32 com, asynch communications, serial communications

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HS SMS DLL (GSM 07.05)
Free - Hillstone Software

HsSmsDLL is a Windows DLL enabling applications to send, receive, read and delete SMS messages via a GSM modem attached to COM port, according to GSM 07.05, 03.40. The library includes integrated encryption AES, DES, 3DES, ARC4, CAST128, Blowfish,Twofish optionally applied to SMS text. HsSmsDll is designed for use from Visual C / C++, VB (v6 and 2003), C# .NET and other programming languages. Professional License includes full C source code.

sound, pocket pc, blowfish, cast5, calendar, time, block frequency, discrete fourier transform, random number test, cumulative sum

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HS SMTP Lite
Free - Hillstone Software

HS SMTP LITE is a software library in C (supplied with full source code) which implements the client side of Simple Mail Transfer Protocol (SMTP) over TCP socket layer according to RFC 821. Supports transfer of text and file attachments. HS SMTP Library incorporates the necessary state machine, transparency procedures, and server response processing required to comply to a simple and robust SMTP client implementation.

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