Open Dental Installation requires Microsoft .NET. If Windows is updated regularly, workstations should already have the required files installed. Newer versions of Windows come with .NET installed.

Version 24.1 and Greater

In Open Dental Version 24.1 and greater, Microsoft .NET version 4.8 is required:

• .NET 4.8 (link to Microsoft website)

Version 20.2 and Greater

In Open Dental Version 20.2 and greater, two versions of Microsoft .NET are required. The minimum version requirements are as follows:

• .NET 4.7.2 (link to Microsoft website).
  • .NET 4.7.2 replaces .NET 4.5. This means they use the same runtime version, but the assembly versions are updated and include new types and members.
• .NET 3.5 (.exe)
  • .NET 3.5 is typically already included in Windows, but it may need to be turned on manually in the Control Panel.

.NET Framework Repair Tool

Repair Tool: Sometimes the installation must be repaired. See http://www.microsoft.com/en-us/download/details.aspx?id=30135 to download the Microsoft .NET Framework Repair Tool.