PZlib is a parallel implementation of ZLib library. PZlib is automatically scalable on multicore CPUs and manycore CPUs with any number of cores during deflation (inflation is much faster than single-threaded deflation and is not scalable). PZlib is a C++ DLL for Windows which can be used in projects built with Visual Studio 2003 or higher. PZlib has the same API as ZLib library has. So very little changes will be required to integrate PZlib into your existing projects. The performance of compression by PZlib should increase linearly in accordance with the number of CPU cores. The full unlocked version of the Software does not require any installation and grants you the right to distribute an unlimited number of copies of PZlib.dll along with your software products.