There are three editions of Dynamic Disk Converter - Professional Edition, Server Edition and Unlimited Edition. Here is the differences or limitations among them.

	Professional Edition	Server Edition	Unlimited Edition
Supports Windows 2000 Professional, Windows XP 32-bit and Windows Vista, Windows 7 32-bit.
Supports Windows XP 64-bit, Windows Vista 64-bit and Windows 7 64-bit
Supports Windows 2003/2008 Server (32 and 64 bit), Windows 2000 Server/Advanced Server
Free lifetime upgrade
Allows unlimited usage within one company
Free Email Support
License Price	Single License US$ 29.00	Single License US$ 79.96 US$ 59.96	Unlimited License US$ 189.00 US$ 159.00
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