Minimum System requirements:

Operating system: 		Microsoft Windows XP (SP2 or later) 
			or Microsoft Windows Server 2003 (SP1 or later)
			or Microsoft Windows Vista
Environment:		Microsoft .NET Framework 2.0
Database server:		MySQL Community Server
Hardware:		500 MHZ processor (Recommended: 800 MHZ or faster)
			256 MB of RAM (Recommended: 512 MB or more)
			1024 x 768 screen resolution
			10+ MB hard drive space
			
			64-bit support requires a 64-bit CPU that is running a 64-bit version of Windows XP, 
			Windows Vista, or Windows Server 2003, and an additional 128 MB of RAM

Other requirements:	Connection to the internet



Installation order: 

1. Install the Microsoft .NET Framework 2.0
2. Install the MySQL Community Server and start the Server (or the MySQL Database service)
3. Unpack the file "SNPsel.zip" to a directory and start "snpsel.exe"

For further details read the tutorial...