diff --git a/Docs/src/registry.but b/Docs/src/registry.but
index 1b2d6d00..c526c463 100644
--- a/Docs/src/registry.but
+++ b/Docs/src/registry.but
@@ -1,5 +1,7 @@
 \S1{registry} Registry, INI, File Instructions
 
+In all of the below registry instructions use an empty string (just two quotes with nothing between them - "") as the kye name to specify the default key which is shown as (Default) in regedit.exe.
+
 \S2{deleteinisec} DeleteINISec
 
 \c ini_filename section_name
diff --git a/Docs/src/sec.but b/Docs/src/sec.but
index b3605b27..0239e3cd 100644
--- a/Docs/src/sec.but
+++ b/Docs/src/sec.but
@@ -70,7 +70,7 @@ Get the current InstType and stores the Value in the given User Variable. The va
 
 \c inst_type_idx text
 
-Sets the Text of the specified InstType. If the Text is empty than the InstType is removed. By using a previously unused inst_type_idx number you can create new InstTypes. To add/remove Sections to this new InstType see \R{sectionsetinsttypes}{SectionSetInstTypes}. Unlike \R{sectionin}{SectionIn} the index is zero based, which means the first installation type's index is 0.
+Sets the Text of the specified InstType. If the Text is empty than the InstType is removed. By using a previously unused inst_type_idx number you can create new InstTypes. To add/remove Sections to this new InstType see \R{sectionsetinsttypes}{SectionSetInstTypes}. Unlike \R{ssectionin}{SectionIn} the index is zero based, which means the first installation type's index is 0.
 
 \S2{sinsttypegettext} InstTypeGetText