Shareaza 

Multi-network peer-to-peer file-sharing client supporting Gnutella2, Gnutella1, eDonkey2000/eMule and BitTorrent protocols. Using C++, MFC and ATL, for Windows.
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Hyper Hasher Suite 

The ultimate hashing utility! The Hyper Hasher Suite allows you to calculate 26 different hash/checksum and HMAC values for any file on your system, while the HashFile utility adds support for MD5 & SFV file creation and verification.
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Shareaza Lite 

Shareaza Lite is a new improved and completely FREE client for Gnutella, Gnutella2 (G2), eDonkey2000 and BitTorrent P2P networks. It has great user interface with built-in chat and media player and uses swarming technology for fastest downloads.
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Fake MP3 Detector 

Protect your music collection by automatically detecting and deleting fake/corrupted music downloads from file sharing networks such as Kazaa and LimeWire. Fake MP3 files are detected and you can easily test and delete the files from your computer.
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HashCalc 

Fast calculator to compute hash, checksum, HMAC values for file, text and hex string. Supports MD2,MD4,MD5, SHA1,SHA2, RIPEMD160,PANAMA,TIGER, CRC32,ADLER32 algorithms and the hash used in eMule/eDonkey(eDonkey2000,ed2k). Good to check/compare files.
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