System Requirements PC Pentium® 166 MMX or higher (can work with minor systems, but not tested) Generic "Sound Blaster" or "AC97" compatible sound card Generic Microphone Internet Explorer 5 or higher (only for using the help files) A configured & working MAPI email client like Mozilla Thunderbird®, Eudora Mail®, Outlook Express®, etc.. (only for the automatic "send mail" function. You can also use Voice Mail Compressor with your web-based account, but must “save” the voice file, and manually attach, and then manually send form the web based email account.)