diff --git a/spacefx/_sdk_client.py b/spacefx/_sdk_client.py
index d0874cb..9745beb 100644
--- a/spacefx/_sdk_client.py
+++ b/spacefx/_sdk_client.py
@@ -1,55 +1,58 @@
 import os
-import pythonnet
 import shutil
 from pathlib import Path
 
+import pythonnet
+
+
 def search_file(filename, search_path):
-    """Search for a file recursively in a directory tree."""
-    for dirpath, _, filenames in os.walk(search_path):
-        for file in filenames:
-            if file == filename:
-                return os.path.join(dirpath, file)
-    raise FileNotFoundError(f"{filename} not found in {search_path}")
+    """Search for a file recursively in a directory tree using rglob."""
+    search_path = Path(search_path)
+    for file_path in search_path.rglob(filename):
+        return str(file_path)
+    return None
+
 
 # Find the dotnet directory
-DOTNET_DIR = shutil.which("dotnet")
-if not DOTNET_DIR:
+DOTNET_BIN = shutil.which("dotnet")
+if not DOTNET_BIN:
     raise ValueError(f"Unable to find an installation of dotnet.  Please install dotnet so it's found within the system PATH")
 
-DOTNET_DIR = Path(DOTNET_DIR).resolve(strict=True).parent
-DOTNET_DIR = os.path.join(DOTNET_DIR, "shared")
+# Resolve the path to the dotnet binary
+DOTNET_BIN = str(Path(DOTNET_BIN).resolve(strict=True))
 
+# Find the shared directory
+DOTNET_DIR = os.path.join(os.path.dirname(DOTNET_BIN), "shared")
 if not os.path.exists(DOTNET_DIR):
-    raise ValueError(f"dotnet was found, but unable to find the shared directory '${DOTNET_DIR}'.  Please check your dotnet installation and make sure the shared folder is present")
+    raise ValueError(f"dotnet was found at {DOTNET_BIN}, but unable to find the shared directory '{DOTNET_DIR}'.  Please check your dotnet installation and make sure the shared folder is present")
 
 
 # Recursively search and load the runtimeconfig.json - this allows for dotnet minor version changes
-runtimeconfig_file = search_file("Microsoft.AspNetCore.App.runtimeconfig.json", DOTNET_DIR)
+runtime_config_file = search_file("Microsoft.AspNetCore.App.runtimeconfig.json", DOTNET_DIR)
+if runtime_config_file is None:
+    raise ValueError(f"Unable to find the runtimeconfig.json file for Microsoft.AspNetCore.App in the dotnet shared directory '{DOTNET_DIR}'")
 
-pythonnet.load("coreclr", runtime_config=runtimeconfig_file)
+# Load the runtimeconfig.json file
+pythonnet.load("coreclr", runtime_config=runtime_config_file)
 import clr
 from System.Reflection import Assembly
 
-# Load the dotnet dlls by walking down the tree
-for dirpath, dirnames, filenames in os.walk(os.path.join(DOTNET_DIR, 'Microsoft.AspNetCore.App')):
-    if "runtimes" in dirpath:
+
+# Load all dotnet dlls by walking down the Microsoft.AspNetCore.App tree
+for dll_path in Path(os.path.join(DOTNET_DIR, 'Microsoft.AspNetCore.App')).rglob("*.dll"):
+    if "runtimes" in dll_path.parts:
         continue
-    for file in filenames:
-        if file.endswith(".dll"):
-            Assembly.LoadFile(os.path.join(dirpath, file))
+    Assembly.LoadFile(str(dll_path))
 
 
-# Load the client adapter library which is in the parent directory / spacefxClient
-base_dir = Path(__file__).parent / 'spacefxClient'
+# Load the client adapter library
+SPACEFX_CLIENT_DIR = os.path.join(os.path.dirname(__file__), 'spacefxClient')
+spacesdk_client_dll = search_file("spacesdk-client.dll", SPACEFX_CLIENT_DIR)
 
-# Find "spacesdk-client.dll" in any subdirectory
-spacesdk_client_dll = next(base_dir.rglob('spacesdk-client.dll'), None)
+if spacesdk_client_dll is None:
+    raise ValueError(f"The DLL 'spacesdk-client.dll' was not found in '{SPACEFX_CLIENT_DIR}'. Please check that the client library was built and deployed to '{SPACEFX_CLIENT_DIR}'")
 
-# Found it.  Add it
-if spacesdk_client_dll:
-    assembly = clr.AddReference(str(spacesdk_client_dll))
-else:
-    raise ValueError(f"The DLL 'spacesdk-client.dll' was not found in '{str(base_dir)}'. Please check that the client library was built and deployed to '{str(base_dir)}'")
+clr.AddReference(spacesdk_client_dll)
 
 
 # Import the .NET SpaceFx namespace