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HashX by BoilingBit Software

HashX is a powerful yet very easy to use application designed for computes hash value(checksum) for any single file, it allows you to verify that downloaded files are not corrupted or otherwise unusable before you burn them to disc or host them on your file server.

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HashCalc by SlavaSoft Inc.

Free, fast calculator to compute hash, checksum, HMAC values for file, text and hex string. Supports popular message digest and check sum algorithms: MD2,MD4,MD5, SHA1,SHA2, RIPEMD160,PANAMA,TIGER, CRC32,ADLER32, and the hash used in eMule/eDonkey (eDonkey2000,ed2k). With this tool you can test for corruption FTP download/upload transfers, compare music,audio,video,game,image files, verify a CD, perform checking of mp3,mpeg,vcd,iso,zip downloads.

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ScreenStream by NCH Software

ScreenStream lets others 'watch' your screen while you work. It can be used as the modern equivalent of the overhead projector. When you run this program on your computer anyone else on your network (or even the internet) can view what is on your screen by typing the link (and optional access code) into their internet browser. They can continue to watch your screen until you close the program.

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LogonStudioVista by Stardock Systems

LogonStudio is a popular freeware program for creating and changing the Windows logon screen. LogonStudio Vista is a new program that enables users of Windows Vista to change their Windows logon screens. Users can apply logon screens that come with the program, create their own, or download hundreds of additional logon screens created by others at WinCustomize.com.

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