Translate.Net is free client to many language services available online (translators, monolingual and bilingual dictionaries). 26 sites, 35 services, 39 languages, 1352 translations directions.
ability to create user profiles - custom set of services
history of used language pairs which sorted by last use time
input locale catching - when user change input locale, the latest language pair from history is selected. When user select language pairs - input locale changed accordingly
system hotkeys (Ctrl+C+C and\or Ctrl+Ins+Ins) allow to activate Translate.Net and perform translation from any program easy
Whats New in version 0.1.3147.8777:
Added context menu for results views selected text - allow to translate selection in inverted direction
Check at startup, if another running instance of Translate.Net is already running, in this case, the new application activate old one and stop by self
Updated Brazilian Portuguese gui translation
Many fixes
Whats New in version 0.1.3138.11358:
Portuguese and Spanish gui translation>
New engines - Czech, Urdu dictionaries
Many fixes
Whats New in version 0.1.3106.4924:
Italian and Traditional Chinese gui translation>
New engines
Many fixes
Whats New in version 0.1.3076.37121:
Added support for Yahoo Babel Fish Translator - 38 language pairs
Added support for Merriam-Webster dictionary and thesaurus
Google translator updates - many new directions, new languages, etc