The download file is same for Trial and Standard Edition.When you install the product the Trial Edition will be installed and will work with limited features.

You have to get the Standard Edition license inorder to get the full functionality.

1. Dot Net Framework 3.5
2. Windows Active Directory Domain setup.
3. SQL Server or SQL compact edition(SQL compact edition can be installed using setup).
4. Need IIS version 7 or above.
5. Supports upto Microsoft Windows 7 and Microsoft Windows 2008 R2 systems.
6. Both x86 & x64 platforms are supported.