Assorted spelling fixes.

dlls/ntdll/nt.c

@@ -1143,7 +1143,7 @@ void fill_cpu_info(void)
     }
 #else
     num = 1;
-    FIXME("Detecting the number of processors not suported.\n");
+    FIXME("Detecting the number of processors is not supported.\n");
 #endif
     NtCurrentTeb()->Peb->NumberOfProcessors = num;
 

dlls/urlmon/axinstall.c

@@ -324,7 +324,7 @@ static HRESULT install_file(install_ctx_t *ctx, const WCHAR *cache_file)
         if(!strcmpW(ext, cab_extW)) {
             hres = install_cab_file(ctx);
         }else {
-            FIXME("Unsupported extention %s\n", debugstr_w(ext));
+            FIXME("Unsupported extension %s\n", debugstr_w(ext));
             hres = E_NOTIMPL;
         }
         SysFreeString(path);

programs/cmd/tests/test_builtins.cmd

@@ -732,8 +732,8 @@ for %%i in (%INT_PARMS%) do call :EQUtest %%i 10
 for %%i in (%INT_PARMS%) do call :EQUtest %%i 9
 if 011 EQU 9 (echo octal ok)
 if 0xA1 EQU 161 (echo hexa ok)
-if 0xA1 EQU "161" (echo hexa should be be recognized) else (echo string/hexa compare ok)
-if "0xA1" EQU 161 (echo hexa should be be recognized) else (echo string/hexa compare ok)
+if 0xA1 EQU "161" (echo hexa should be recognized) else (echo string/hexa compare ok)
+if "0xA1" EQU 161 (echo hexa should be recognized) else (echo string/hexa compare ok)
 for %%i in (%INT_PARMS%) do call :NEQtest %%i 0
 for %%i in (%INT_PARMS%) do call :NEQtest %%i 1
 for %%i in (%INT_PARMS%) do call :NEQtest %%i 10