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.

the dns library is a com object that makes dynamic dns updates to bind, microsoft and other rfc-2136-compatible dns servers possible from most languages in an easy way. the library supports the following record types: a, mx, srv, ns, cname, ptr, txt. the library implements 5 components: dnslibrary.server, dnslibrary.resolver, dnslibrary.authentication, dnslibrary.resourcerecord, dnslibrary.resourcerecordset. secure updates supported.

dynsite automatically updates your dynamic ip address every time it changes on one or many dynamic dns services or by email. this allows anyone to connect to the servers running on your own computer using a fully qualified domain name. since your host name never changes it makes accessing your servers much easier than using your ip address which changes each time you reconnect. this is also useful when you want to remotely control your pc.