>http://msdn.microsoft.com/en-us/library/cc656912(v=vs.110).aspx
>
>>Two of the projects are targeting NET Framework 4 and the one which is Windows Forms targeting Net Framework 4 Client Profile.
>>
>>I attempted to change, but got warnings and decided to keep it as is. Do you know what 'Client Profile' is and does it make a difference?

Thanks. I am going to ask my colleagues if it's OK to switch to 4.5 version of .NET for that app.