1 files changed, 23 insertions, 1 deletions
diff --git a/RhSolutions.AddIn/AddIn/RhSolutionsAddIn.cs b/RhSolutions.AddIn/AddIn/RhSolutionsAddIn.cs
index 2ddff1a..7d70ef0 100644
--- a/RhSolutions.AddIn/AddIn/RhSolutionsAddIn.cs
+++ b/RhSolutions.AddIn/AddIn/RhSolutionsAddIn.cs
@@ -1,4 +1,5 @@
 using System.Net;
+using ExcelDna.IntelliSense;
 #if !NET472
 using System.Runtime.Versioning;
 #endif
@@ -40,12 +41,33 @@ public sealed class RhSolutionsAddIn : IExcelAddIn
         Excel = ServiceProvider.GetService<Application>();
 
         EventsUtil.Initialize();
+        string variable = Environment.GetEnvironmentVariable("ISTESTING");
+        bool isTesting = variable switch
+        {
+            "true" => true,
+            "false" => false,
+            _ => false
+        };
+        if (!isTesting)
+        {
+            IntelliSenseServer.Install();
+        }
+
         ServicePointManager.SecurityProtocol =
             SecurityProtocolType.Tls12;
     }
 
     public void AutoClose()
     {
-        EventsUtil.Uninitialize();
+        EventsUtil.Uninitialize(); bool isTesting = Environment.GetEnvironmentVariable("ISTESTING") switch
+        {
+            "true" => true,
+            "false" => false,
+            _ => false
+        };
+        if (!isTesting)
+        {
+            IntelliSenseServer.Uninstall();
+        }
     }
 }