Hillstone Software

Invoice Manager helps small and medium businesses easily manage their invoicing needs. This software allows users to generate and print invoices, credit notes, delivery notes, and more. It also supports barcode scanning, email, PDF formatting, and advanced reporting features. With a customer and product database built-in, Invoice Manager streamlines the invoicing process.

HS Task Planner is a project management and task list software that enables users to manage their tasks in a tree-like hierarchical structure. It provides essential features found in expensive project software to create, delete, edit, and organize tasks.

HS COM is a software library that grants user applications access to serial communication ports under 32-bit MS Windows. It permits data transmission, receiving, and line control. The full C source code is included.

HS FTP is a C/C++ software library designed to implement the client side of the TCP socket layer while adhering to RFC 959 standard. It facilitates File Transfer Protocol and helps with reliable data transmission.

HS NTP is a C library that implements the network time protocol client-side over UDP socket layer, adhering to RFC1769 and RFC1305. With the source code, it can synchronize system time to NTP server time.

HS POP3 is a C software library with full source code that implements the client side of POP3 over TCP socket layer as per RFC 1939. It also supports secure POP3 over TLS/SSL, POP3S, and RFC 2595.

HS SMTP is a C-based software library that enables the client side of Simple Mail Transfer Protocol over a TCP socket layer, following RFC 821 guidelines. It supports the transfer of plain text and file attachments and provides support for SMTP TLS encryption. The software comes with complete source code.

HS XMODEM is a C software library that comes with source code, giving developers ready-to-use support for XMODEM data transfer protocol. The library enables transmission and reception capacities for the protocol.