FSR Manager and FSR FileSubmit require Microsoft's .NET Framework 2.0 or higher installed. If .NET Framework is not installed, the tools will not work.

You can download it from Microsoft's webpage:

.NET Framework 2.0: http://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5

.NET Framework 3.5: http://www.microsoft.com/downloads/details.aspx?familyid=333325FD-AE52-4E35-B531-508D977D32A6