FREE: Spanish language learning software - 4 discs "Instant Immersion"

It's listed online as running on Windows 98 and 95 but I know it runs on XP since that's what I have. I'm not sure about 7. Pentium required; A microphone is recommended, but not required. Here's a bit more info I found online:

Instant Immersion Spanish uses the Euro Method of language immersion to teach users how to speak Spanish. The software guides you through beginning and intermediate stages and, like its sister programs (e.g. Instant Immersion German and Instant Immersion French) features multiple CD-ROMs, each with a different function.

Talk Now and World Talk lay the building blocks that allow the user to learn and speak the language, covering various aspects of grammar, recognition and reading and speaking words. Webster's Five-Language Talking Dictionary translates English words to Spanish, French, Italian, Dutch and German and offers a quick reference for looking up unfamiliar words or phrases.

The fourth CD included with Instant Immersion Spanish is the interactive mystery game Who Is Oscar Lake?. While playing, you are challenged to translate clues (from Spanish-speaking characters) and select appropriate responses from several possible Spanish language answers, although instant translations are available.