diff --git a/swad_changelog.h b/swad_changelog.h
index a8c29aa8e..db4ba76bc 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -206,20 +206,20 @@
 // TODO: Include type of degree in form of degree configuration
 
 // TODO: Cuando un admin. pulsa en "Inscribir profesor/a" y el usuario es invitado, debería salir en el rol por defecto "profesor" y no "estudiante"
-
-// TODO: Poner interrogación de ayuda en "USUARIOS > Inscripción" (cuando se pide confirmación para aceptar o rechazar)
+// TODO: Tras inscribir a un profesor en una asignatura, nos vamos a otra pestaña, luego regresamos a USUARIOS y la opción por defecto es Otros, cuando debería ser Profesores.
 
 /*****************************************************************************/
 /****************************** Public constants *****************************/
 /*****************************************************************************/
 
-#define Log_PLATFORM_VERSION	"SWAD 16.172 (2017-03-30)"
+#define Log_PLATFORM_VERSION	"SWAD 16.172.1 (2017-03-30)"
 #define CSS_FILE		"swad16.166.css"
 #define JS_FILE			"swad16.144.js"
 
 // Number of lines (includes comments but not blank lines) has been got with the following command:
 // nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*?.h sql/swad*.sql | tail -1
 /*
+        Version 16.172.1: Mar 30, 2017	Some help URLs translated to spanish. (217554 lines)
         Version 16.172:   Mar 30, 2017	Some help URLs translated to spanish.
 					Changed "enroll" and "enrollment" to "enrol" and "enrolment", except in web service API. (217531 lines)
         Version 16.171.15:Mar 30, 2017	Some help URLs translated to spanish. (217528 lines)
diff --git a/swad_enrolment.c b/swad_enrolment.c
index 40eb5ecf5..5740f8e45 100644
--- a/swad_enrolment.c
+++ b/swad_enrolment.c
@@ -347,6 +347,7 @@ void Enr_WriteFormToReqAnotherUsrID (Act_Action_t NextAction)
 
 void Enr_ReqAcceptRegisterInCrs (void)
   {
+   extern const char *Hlp_USERS_SignUp_confirm_enrolment;
    extern const char *Txt_Enrolment;
    extern const char *Txt_A_teacher_or_administrator_has_enroled_you_as_X_into_the_course_Y;
    extern const char *Txt_ROLES_SINGUL_abc[Rol_NUM_ROLES][Usr_NUM_SEXS];
@@ -354,7 +355,8 @@ void Enr_ReqAcceptRegisterInCrs (void)
    extern const char *Txt_Remove_me_from_this_course;
 
    /***** Start frame *****/
-   Lay_StartRoundFrame (NULL,Txt_Enrolment,NULL,NULL);
+   Lay_StartRoundFrame (NULL,Txt_Enrolment,NULL,
+                        Hlp_USERS_SignUp_confirm_enrolment);
 
    /***** Show message *****/
    sprintf (Gbl.Message,Txt_A_teacher_or_administrator_has_enroled_you_as_X_into_the_course_Y,
diff --git a/swad_follow.c b/swad_follow.c
index b4d262964..6ce2bd4b7 100644
--- a/swad_follow.c
+++ b/swad_follow.c
@@ -108,7 +108,7 @@ void Fol_PutLinkWhoToFollow (void)
 
 void Fol_SuggestUsrsToFollowMainZone (void)
   {
-   extern const char *Hlp_SOCIAL_Follow;
+   extern const char *Hlp_SOCIAL_Profiles_who_to_follow;
    extern const char *Txt_Who_to_follow;
    extern const char *Txt_No_user_to_whom_you_can_follow_Try_again_later;
    MYSQL_RES *mysql_res;
@@ -131,7 +131,7 @@ void Fol_SuggestUsrsToFollowMainZone (void)
       /***** Start frame *****/
       Lay_StartRoundFrameTable ("560px",Txt_Who_to_follow,
                                 Fol_PutIconsWhoToFollow,
-                                Hlp_SOCIAL_Follow,2);
+                                Hlp_SOCIAL_Profiles_who_to_follow,2);
 
       /***** Initialize structure with user's data *****/
       Usr_UsrDataConstructor (&UsrDat);
diff --git a/swad_help_URL.c b/swad_help_URL.c
index 48ff12e73..3c8c833b4 100644
--- a/swad_help_URL.c
+++ b/swad_help_URL.c
@@ -1601,6 +1601,27 @@ const char *Hlp_USERS_SignUp =
 	"USERS.SignUp";
 #endif
 
+const char *Hlp_USERS_SignUp_confirm_enrolment =
+#if   L==1
+	"USERS.SignUp#confirm_enrolment";
+#elif L==2
+	"USERS.SignUp#confirm_enrolment";
+#elif L==3
+	"USERS.SignUp#confirm_enrolment";
+#elif L==4
+	"USERS.SignUp.es#confirmar-inscripci%C3%B3n";
+#elif L==5
+	"USERS.SignUp#confirm_enrolment";
+#elif L==6
+	"USERS.SignUp#confirm_enrolment";
+#elif L==7
+	"USERS.SignUp#confirm_enrolment";
+#elif L==8
+	"USERS.SignUp#confirm_enrolment";
+#elif L==9
+	"USERS.SignUp#confirm_enrolment";
+#endif
+
 const char *Hlp_USERS_Requests =
 #if   L==1
 	"USERS.Requests";
@@ -1708,25 +1729,25 @@ const char *Hlp_SOCIAL_Profiles_view_public_profile =
 	"SOCIAL.Profiles#view-public-profile";
 #endif
 
-const char *Hlp_SOCIAL_Follow =
+const char *Hlp_SOCIAL_Profiles_who_to_follow =
 #if   L==1
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==2
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==3
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==4
-	"SOCIAL.Follow.es";
+	"SOCIAL.Profiles.es#a-qui%C3%A9n-seguir";
 #elif L==5
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==6
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==7
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==8
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #elif L==9
-	"SOCIAL.Follow";
+	"SOCIAL.Profiles#who-to-follow";
 #endif
 
 const char *Hlp_SOCIAL_Forums =
diff --git a/swad_text.c b/swad_text.c
index 2e98ab0e7..b0d053c96 100644
--- a/swad_text.c
+++ b/swad_text.c
@@ -1521,7 +1521,7 @@ const char *Txt_A_teacher_or_administrator_has_enroled_you_as_X_into_the_course_
 #elif L==3
 	"A teacher or an administrator has enroled you"
 	" as a <strong>%s</strong>"
-	"into the course <strong>%s</strong>."
+	" into the course <strong>%s</strong>."
 	" Do you want to confirm the enrolment"
 	" or do you prefer to be removed from the course?";
 #elif L==4