I usually use Bandizip as a free file archiver. It's a lightweight, fast and free All-In-One Zip Archiver. This application has a very fast Zip algorithm for compression & extraction with Fast Drag and Drop, High Speed Archiving, and Multi-core compression. It handles the most popular compression formats, including zip, 7z, rar, and so on.
It's a good alternative to Winzip or other file archiver. However, it does not support the "compress and send to email" function.