diff --git a/GrpcInterface/Python/rips/instance.py b/GrpcInterface/Python/rips/instance.py
index 1f6f7b0f70..4fc7603f35 100644
--- a/GrpcInterface/Python/rips/instance.py
+++ b/GrpcInterface/Python/rips/instance.py
@@ -12,6 +12,8 @@
 import time
 import tempfile
 import signal
+import sys
+import json
 
 import grpc
 
@@ -30,7 +32,7 @@
 
 from typing import List, Optional, Tuple
 from typing_extensions import Self
-
+from pathlib import Path
 
 class Instance:
     """The ResInsight Instance class. Use to launch or find existing ResInsight instances
@@ -121,6 +123,16 @@ def launch(
         if launch_port != -1:
             requested_port = launch_port
 
+        if not resinsight_executable:
+            filename = Path(sys.prefix) / "share" / "rips" / "rips_config.json"
+            print("Looking for config file", filename)
+            if filename.is_file():
+                f = open(filename)
+                data = json.load(f)
+                resinsight_executable = data['resinsight_executable']
+                if resinsight_executable:
+                  print("  Found resinsight_executable:", resinsight_executable)
+
         if not resinsight_executable:
             resinsight_executable_from_env = os.environ.get("RESINSIGHT_EXECUTABLE")
             if not resinsight_executable_from_env: