diff --git a/redo/windows/separator.c b/redo/migrated/windows/separator.c
similarity index 100%
rename from redo/windows/separator.c
rename to redo/migrated/windows/separator.c
diff --git a/redo/windows/slider.c b/redo/migrated/windows/slider.c
similarity index 100%
rename from redo/windows/slider.c
rename to redo/migrated/windows/slider.c
diff --git a/redo/windows/spinbox.c b/redo/migrated/windows/spinbox.c
similarity index 100%
rename from redo/windows/spinbox.c
rename to redo/migrated/windows/spinbox.c
diff --git a/redo/windows/tab.c b/redo/migrated/windows/tab.c
similarity index 99%
rename from redo/windows/tab.c
rename to redo/migrated/windows/tab.c
index 5cc47a57..c4abe081 100644
--- a/redo/windows/tab.c
+++ b/redo/migrated/windows/tab.c
@@ -3,6 +3,7 @@
 
 // TODO
 // - comctl5 on real windows: tabs get drawn behind checkbox
+// - container update state
 
 struct tab {
 	uiTab t;
diff --git a/redo/windows/tabpage.c b/redo/migrated/windows/tabpage.c
similarity index 99%
rename from redo/windows/tabpage.c
rename to redo/migrated/windows/tabpage.c
index db03cd79..9a9e7739 100644
--- a/redo/windows/tabpage.c
+++ b/redo/migrated/windows/tabpage.c
@@ -7,6 +7,7 @@
 // TODO (long term) figure out how to use uiContainer with this
 
 // TODO verify that the tab page texture doesn't end too soon
+// TODO container update state
 
 struct tabPage {
 	uiControl c;
diff --git a/redo/windows/uipriv_windows.h b/redo/migrated/windows/uipriv_windows.h
similarity index 100%
rename from redo/windows/uipriv_windows.h
rename to redo/migrated/windows/uipriv_windows.h