diff --git a/docs/doxygen/groups/class_ipc.h b/docs/doxygen/groups/class_ipc.h
index e643a56f0b..73f80bcd9e 100644
--- a/docs/doxygen/groups/class_ipc.h
+++ b/docs/doxygen/groups/class_ipc.h
@@ -12,7 +12,7 @@
 @ingroup group_class
 
 wxWidgets provides simple interprocess communications facilities based on
-Windows DDE, but available on most platforms using TCP.
+Windows DDE, but they are available on most platforms using TCP.
 
 Related Overviews: @ref overview_ipc
 
diff --git a/docs/doxygen/groups/funcmacro_env.h b/docs/doxygen/groups/funcmacro_env.h
index 41f470e656..59a9ee8bdf 100644
--- a/docs/doxygen/groups/funcmacro_env.h
+++ b/docs/doxygen/groups/funcmacro_env.h
@@ -15,5 +15,12 @@ These functions allow access to get or change the values of environment
 variables in a portable way. They are currently implemented under Win32 and
 POSIX-like systems (Unix).
 
+Remember that these functions add/change/delete environment variables of the
+current process only. Child processes copy the environment variables of the parent
+but do not share them (a wxSetEnv() in the parent process won't change the value
+returned by wxGetEnv() in the child process and viceversa).
+
+For more evoluted interprocess communication tecniques see @ref overview_ipc.
+
 */