diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index e51490fb3..2184405f8 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -3109,4 +3109,53 @@ HFONT CreateFont(
       <valid>0:</valid>
     </arg>
   </function>
+  <!-- int _strnicmp(const char *string1, const char *string2, size_t count); -->
+  <!-- int _wcsnicmp(const wchar_t *string1, const wchar_t *string2, size_t count); -->
+  <!-- int _mbsnicmp(const unsigned char *string1, const unsigned char *string2, size_t count); -->
+  <function name="_strnicmp,_wcsnicmp,_mbsnicmp,_tcsncicmp,_tcsnicmp">
+    <use-retval/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-null/>
+      <not-uninit/>
+      <minsize type="argvalue" arg="3"/>
+    </arg>
+    <arg nr="2">
+      <not-null/>
+      <not-uninit/>
+      <minsize type="argvalue" arg="3"/>
+    </arg>
+    <arg nr="3">
+      <not-uninit/>
+      <not-bool/>
+      <valid>0:</valid>
+    </arg>
+  </function>
+  <!-- int _strnicmp_l(const char *string1, const char *string2, size_t count, _locale_t locale); -->
+  <!-- int _wcsnicmp_l(const wchar_t *string1, const wchar_t *string2, size_t count, _locale_t locale); -->
+  <!-- int _mbsnicmp_l(const unsigned char *string1, const unsigned char *string2, size_t count,  _locale_t locale); -->
+  <function name="_strnicmp_l,_wcsnicmp_l,_mbsnicmp_l,_tcsncicmp_l">
+    <use-retval/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-null/>
+      <not-uninit/>
+      <minsize type="argvalue" arg="3"/>
+    </arg>
+    <arg nr="2">
+      <not-null/>
+      <not-uninit/>
+      <minsize type="argvalue" arg="3"/>
+    </arg>
+    <arg nr="3">
+      <not-uninit/>
+      <not-bool/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="4">
+      <not-uninit/>
+    </arg>
+  </function>
 </def>