Make sure to check out the Frequently Asked Questions if you run into any problems.
Trial Limitations:
Converted files are limited to 60 seconds.
Software Requirements:
Windows XP, Vista, 7, 2003,
2008 (x86 and x64); .NET Framework 3.5 SP1
System Requirements:
1GHz Processor; 512MB RAM; 20MB+ Hard Drive Space;
Display: 800x600 or higher