The ProductVersion property is a read-only property. To change the value of this property, set the Version property value of the AssemblyVersionAttribute. The following line of C# code sets the ProductVersion property.
It is strongly recommended that you provide the company name, product name, and product version. Providing this information enables the use of Windows Forms features such as Application.UserAppDataPath that make it easier to write applications that comply with the "Certified for Windows" program. For more information about the Certified for Windows program, see http://msdn.microsoft.com/certification.