C/C++ TCP and UDP socket library client/server component. Allows multiple servers and clients simultaneously. Create proxy, chat, file transfer, HTTP, SMTP, POP3, FTP and DNS client programs. Secure and private messaging. Supports using session keys for encrypting and decrypting data. Control devices (relay, scale, GPS, embedded computer, etc.) using TCP/IP. Multiple examples. 32-bit and 64-bit Windows XP through Windows 10. Royalty free.

C/C++ TCP and UDP socket library client/server component. Features of the library include: - Use to create both clients and servers. - Supports "one time" passwords. - Data and files can be encrypted and decrypted. - Supports using session keys. - Supports secure and private messaging. - Use with the MarshallSoft AES Encryption Library for strong encryption/decryption. - Create chat servers and clients. - Create client/server file transfer programs. - Create client programs to talk to TCP servers (POP3, IMAP, HTTP, FTP, SMTP, DNS, etc,). - Connect to a device by sending commands to its IP address. - Create SMTP proxy programs extracting a copy of all recipient addresses. - Create POP3 proxy programs that filter incoming email for Spam. - Create HTTP proxy used to filter content. - Send and receive data buffers or entire files. - Servers can handle multiple connections concurrently. - Allows multiple servers and clients to run simultaneously. - Can specify the maximum number of connections that the server will accept. - Supports both TCP and UDP protocols. - Includes multiple C/C++ example programs. - Does not depend on support libraries (calls to core Windows API functions only). - Royalty free distribution with your compiled application. - C source code is available. - Free technical support and updates for one year. - Fully functional evaluation version available. - Supports most C/C++ compilers: Microsoft, Borland, Watcom, LCC, GCC, Digital Mars. - Supports all versions of 32-bit and 64-bit Microsoft C/C++ and Visual Studio C/C++. - Includes 32-bit and 64-bit DLL files plus OBJ files for static linking. - Works with 32-bit and 64-bit Windows through Windows 10.

Major Update
Fixed problem with cscFileCRC() and cscCryptoPutFileExt(). Added cscTestDotted(). Fixed problem in cscRelease(). Increased MAX_DATA_SIZE from 30000 to 50000 bytes. Added CSC_SET_SOCK_REUSE [to cscSetInteger()].
[ Client/Server Comm Lib for C/C++ release history ]

32 or 64 bit Windows

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