Open Source C# File Archivers

ZenArchieve is a next-generation Windows archive utility built with C# and WPF to replace legacy tools like WinRAR and 7-Zip. It supports ZIP, 7Z, RAR, TAR, GZ, and ISO formats with multi-core LZMA2 compression. Features include locked topmost extraction modals that never get hidden under other windows, seamless one-click in-place OTA auto-updating (no uninstallation required), in-archive SHA-256 duplicate file detection, archive merging with automatic deduplication, and isolated safe previews for images and text.

GnuCopy is an Open-Source tool to copy and archive all your important data. It supports all important archive typs like Zip and Tar to guaranty an easy and secure exchange between all types of operating systems. Additionally, you can create profiles to blacklist or whitelist specific file types or folders to seperate your big data stores for backups.

MASGAU Automatic Save Game Archive Utility - A backup utility that automatically detects and archives saved games and can then restore them.

New version v2018.11.09. See release notes in Files tab. NuZip is a zip program that adds an option to create password protected zip files from the "Send To" desktop menu. NuZip also has a double-zip feature to prevent zip files containing blocked extensions (such as .exe) from being rejected when attached to an email. The installation is easy. 1. Copy NuZip.exe and Ionic.Zip.dll to the desired folder (e.g. C:\Program Files\Opulos\NuZip\). 2. Double-click NuZip.exe. This will create a new shortcut in the Send To folder, which appears as a new menu option in windows. 3. Done. NuZip is written in C# and targets the .NET35 Client Profile.