diff --git a/src/os_win32.c b/src/os_win32.c
index 371363b..c0434db 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -308,7 +308,7 @@
 # ifndef GETTEXT_DLL
 #  define GETTEXT_DLL "libintl.dll"
 # endif
-/* Dummy funcitons */
+/* Dummy functions */
 static char *null_libintl_gettext(const char *);
 static char *null_libintl_textdomain(const char *);
 static char *null_libintl_bindtextdomain(const char *, const char *);
@@ -1409,7 +1409,7 @@
 
 
 /*
- * mch_inchar(): low-level input funcion.
+ * mch_inchar(): low-level input function.
  * Get one or more characters from the keyboard or the mouse.
  * If time == 0, do not wait for characters.
  * If time == n, wait a short time for characters.
@@ -3451,14 +3451,14 @@
      * to avoid to perform a blocking read */
     ret = PeekNamedPipe(g_hChildStd_OUT_Rd, /* pipe to query */
 			NULL,		    /* optional buffer */
-			0,		    /* buffe size */
+			0,		    /* buffer size */
 			NULL,		    /* number of read bytes */
 			&availableBytes,    /* available bytes total */
 			NULL);		    /* byteLeft */
 
     repeatCount = 0;
     /* We got real data in the pipe, read it */
-    while (ret != 0 && availableBytes > 0 && availableBytes > 0)
+    while (ret != 0 && availableBytes > 0)
     {
 	repeatCount++;
 	toRead =
@@ -3638,7 +3638,7 @@
 		  NULL,			/* Process security attributes */
 		  NULL,			/* Thread security attributes */
 
-		  // this command can be litigeous, handle inheritence was
+		  // this command can be litigious, handle inheritance was
 		  // deactivated for pending temp file, but, if we deactivate
 		  // it, the pipes don't work for some reason.
 		  TRUE,			/* Inherit handles, first deactivated,
diff --git a/src/version.c b/src/version.c
index e60a4be..8c3c835 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    571,
+/**/
     570,
 /**/
     569,