diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index fb5c3dc79..0559a3ab3 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -962,6 +962,11 @@
     <alloc init="true">CreateEvent</alloc>
     <alloc init="true">CreateEventEx</alloc>
     <alloc init="true">CreateMutex</alloc>
+    <alloc init="true">CreateMutexA</alloc>
+    <alloc init="true">CreateMutexW</alloc>
+    <alloc init="true">CreateMutexEx</alloc>
+    <alloc init="true">CreateMutexExA</alloc>
+    <alloc init="true">CreateMutexExW</alloc>
     <alloc init="true">CreateSemaphore</alloc>
     <alloc init="true">CreateSemaphoreA</alloc>
     <alloc init="true">CreateSemaphoreW</alloc>
@@ -972,6 +977,8 @@
     <alloc init="true">CreateWaitableTimer</alloc>
     <alloc init="true">OpenEvent</alloc>
     <alloc init="true">OpenMutex</alloc>
+    <alloc init="true">OpenMutexA</alloc>
+    <alloc init="true">OpenMutexW</alloc>
     <alloc init="true">OpenSemaphore</alloc>
     <alloc init="true">OpenSemaphoreA</alloc>
     <alloc init="true">OpenSemaphoreW</alloc>
@@ -4045,6 +4052,80 @@ HFONT CreateFont(
       <not-bool/>
     </arg>
   </function>
+  <!--HANDLE WINAPI CreateMutex(
+  _In_opt_ LPSECURITY_ATTRIBUTES lpMutexAttributes,
+  _In_     BOOL                  bInitialOwner,
+  _In_opt_ LPCTSTR               lpName);-->
+  <function name="CreateMutex,CreateMutexA,CreateMutexW">
+    <returnValue type="HANDLE"/>
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="3">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
+  <!--HANDLE WINAPI CreateMutexEx(
+  _In_opt_ LPSECURITY_ATTRIBUTES lpMutexAttributes,
+  _In_opt_ LPCTSTR               lpName,
+  _In_     DWORD                 dwFlags,
+  _In_     DWORD                 dwDesiredAccess);-->
+  <function name="CreateMutexEx,CreateMutexExA,CreateMutexExW">
+    <returnValue type="HANDLE"/>
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+    <arg nr="3">
+      <not-uninit/>
+      <valid>0,1</valid>
+    </arg>
+    <arg nr="4">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!--HANDLE WINAPI OpenMutex(
+  _In_ DWORD   dwDesiredAccess,
+  _In_ BOOL    bInheritHandle,
+  _In_ LPCTSTR lpName);-->
+  <function name="OpenMutex,OpenMutexA,OpenMutexW">
+    <returnValue type="HANDLE"/>
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="3">
+      <not-uninit/>
+      <not-null/>
+      <not-bool/>
+      <strz/>
+    </arg>
+  </function>
+  <!--BOOL WINAPI ReleaseMutex(
+  _In_ HANDLE hMutex);-->
+  <function name="ReleaseMutex">
+    <returnValue type="BOOL"/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
   <podtype name="LARGE_INTEGER" sign="s" size="8"/>
   <podtype name="POINTER_SIGNED" sign="s"/>
   <podtype name="POINTER_UNSIGNED" sign="u"/>