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dot Net 

Open Dental requires both Microsoft dotNet 3.5 and 4.0.  They are both installed and run side-by-side.  Most computers that are kept updated with Windows Updates will already have both of these installed.  If not, then go ahead and run the links below.  If you are not sure, then also go ahead and run the links because it's harmless.  If you have been using Open Dental successfully, and are now updating to Version 11.1 or later, then just run the second link for 4.0.

dotNet 3.5

dotNet 4.0

(Select "Run" when given a choice).

Newer versions of Windows come with .NET installed. 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.

Technical note: 3.5 includes 2.0, so 2.0 is not also required to be installed.  But 4.0 does not include 3.5, which is why both 3.5 and 4.0 are required side-by-side.


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