SearchBin is a fast commandline program for searching within binary files. It's a bit like grep for binaries. It offers wildcard matching and has three capabilities for searching: for bytes using hexidecimal, for a plain text string, and for a smaller binary file. Any discovered matches will print the found offsets (0-based).
MyRPC is a remote procedure call framework designed to easily connect heterogeneous systems. It features IDL-based client and server stub generation, multi-platform capability, binary protocol (no need for escaping of binary data, less overhead), support for various data types (like string, binary, signed and unsigned integers, floating point, list, structure, and enumeration), and exception support. It has no external dependencies.