VueMinder Lite USB is a free calendar program that can run from a USB stick - no installation required. It can auto-sync with Google Calendar.

A calendar browser allows addition of many events, such as holidays, local weather, sport schedules, religious occasions, and much more.

You can also create your own calendars, which are overlaid into day, week, and month views. Events are also visible directly on the Windows desktop, even when offline!

Features:

• View multiple calendars in layers and by day, week, or month.
• Subscribe to calendars on local network or web.
• Add common public calendars, such as holidays.
• Categorize events.
• Import from iCalendar (ics) files.
• Export to iCalendar (ics) files.
• Print calendars using daily, weekly, and monthly layouts.
• Quick startup using a configuration wizard.
• Backup and restore data.
• Cut, copy, paste, and delete events.
• Customize calendar appearances.
• View simple popup reminders.
• Popup reminders can contain music or videos.
• View simple desktop alerts.
• Enter event descriptions using full-featured text editor or HTML.
• Mark events and tasks as being completed.
• View an interactive calendar that is integrated into the Windows desktop.
• Hide completed events and tasks.
• Quick multi-month navigation.
• Search for events.
• Automatically check for program updates.

The Lite version is completely free, but doesn´t have as many bells and whistles as the Pro and Enterprise versions.

Requires: Microsoft .NET Framework 3.5 SP1.