diff --git a/src/solidlsp/language_servers/csharp_language_server/csharp_language_server.py b/src/solidlsp/language_servers/csharp_language_server/csharp_language_server.py
index e356fe2..27dd9f5 100644
--- a/src/solidlsp/language_servers/csharp_language_server/csharp_language_server.py
+++ b/src/solidlsp/language_servers/csharp_language_server/csharp_language_server.py
@@ -516,7 +516,7 @@ class CSharpLanguageServer(SolidLanguageServer):
         return cast(
             InitializeParams,
             {
-                "worspaceFolders": [{"uri": root_uri, "name": root_name}],
+                "workspaceFolders": [{"uri": root_uri, "name": root_name}],
                 "processId": os.getpid(),
                 "rootPath": self.repository_root_path,
                 "rootUri": root_uri,
diff --git a/src/solidlsp/language_servers/intelephense/intelephense.py b/src/solidlsp/language_servers/intelephense/intelephense.py
index 19eaa8b..796bb8a 100644
--- a/src/solidlsp/language_servers/intelephense/intelephense.py
+++ b/src/solidlsp/language_servers/intelephense/intelephense.py
@@ -6,6 +6,7 @@ import json
 import logging
 import os
 import pathlib
+import platform
 import shutil
 import subprocess
 from time import sleep
@@ -70,8 +71,8 @@ class Intelephense(SolidLanguageServer):
                 # Windows doesn't support the 'user' parameter and doesn't have pwd module
                 if PlatformUtils.get_platform_id().value.startswith("win"):
                     subprocess.run(
-                        dependency["command"],
-                        shell=True,
+                        dependency["command"].split(" "),
+                        shell=False,
                         check=True,
                         cwd=intelephense_ls_dir,
                         stdout=subprocess.DEVNULL,
diff --git a/src/solidlsp/language_servers/typescript_language_server/typescript_language_server.py b/src/solidlsp/language_servers/typescript_language_server/typescript_language_server.py
index f220406..21be15b 100644
--- a/src/solidlsp/language_servers/typescript_language_server/typescript_language_server.py
+++ b/src/solidlsp/language_servers/typescript_language_server/typescript_language_server.py
@@ -6,6 +6,7 @@ import json
 import logging
 import os
 import pathlib
+import platform
 import shutil
 import subprocess
 import threading
@@ -103,8 +104,8 @@ class TypeScriptLanguageServer(SolidLanguageServer):
                 # Windows doesn't support the 'user' parameter and doesn't have pwd module
                 if PlatformUtils.get_platform_id().value.startswith("win"):
                     subprocess.run(
-                        dependency["command"],
-                        shell=True,
+                        dependency["command"].split(" "),
+                        shell=False,
                         check=True,
                         cwd=tsserver_ls_dir,
                         stdout=subprocess.DEVNULL,
diff --git a/src/solidlsp/ls_handler.py b/src/solidlsp/ls_handler.py
index 65a5931..e6f9d6e 100644
--- a/src/solidlsp/ls_handler.py
+++ b/src/solidlsp/ls_handler.py
@@ -2,6 +2,7 @@ import asyncio
 import json
 import logging
 import os
+import platform
 import subprocess
 import threading
 import time
@@ -148,6 +149,7 @@ class SolidLanguageServerHandler:
         child_proc_env.update(self.process_launch_info.env)
 
         log.info("Starting language server process via command: %s", self.process_launch_info.cmd)
+        is_windows = platform.system() == "Windows"
         self.process = subprocess.Popen(
             self.process_launch_info.cmd,
             stdout=subprocess.PIPE,
@@ -156,7 +158,7 @@ class SolidLanguageServerHandler:
             env=child_proc_env,
             cwd=self.process_launch_info.cwd,
             start_new_session=self.start_independent_lsp_process,
-            shell=True,
+            shell=not is_windows,
         )
 
         # Check if process terminated immediately
diff --git a/test/serena/test_serena_agent.py b/test/serena/test_serena_agent.py
index 5741cab..bae716d 100644
--- a/test/serena/test_serena_agent.py
+++ b/test/serena/test_serena_agent.py
@@ -32,7 +32,16 @@ def serena_config():
     """Create an in-memory configuration for tests with test repositories pre-registered."""
     # Create test projects for all supported languages
     test_projects = []
-    for language in [Language.PYTHON, Language.GO, Language.JAVA, Language.RUST, Language.TYPESCRIPT, Language.PHP, Language.CSHARP, Language.CLOJURE]:
+    for language in [
+        Language.PYTHON,
+        Language.GO,
+        Language.JAVA,
+        Language.RUST,
+        Language.TYPESCRIPT,
+        Language.PHP,
+        Language.CSHARP,
+        Language.CLOJURE,
+    ]:
         repo_path = get_repo_path(language)
         if repo_path.exists():
             project_name = f"test_repo_{language}"