diff --git a/source/components/ThemePageControl.cpp b/source/components/ThemePageControl.cpp
index 1752c1d7d..7a3d32c3c 100644
--- a/source/components/ThemePageControl.cpp
+++ b/source/components/ThemePageControl.cpp
@@ -15,7 +15,7 @@
 #pragma package(smart_init)
 //---------------------------------------------------------------------------
 // Based on
-// https://www.codeproject.com/articles/XP-Themes-Tab-Control-in-any-orientation
+// https://web.archive.org/web/20250809094534/https://www.codeproject.com/Articles/6355/XP-Themes-Tab-Control-in-any-orientation
 //---------------------------------------------------------------------------
 #define IDS_UTIL_TAB            L"TAB"
 //---------------------------------------------------------------------------
diff --git a/source/windows/WinApi.h b/source/windows/WinApi.h
index 2c2e16278..9ef203fdc 100644
--- a/source/windows/WinApi.h
+++ b/source/windows/WinApi.h
@@ -12,7 +12,7 @@ typedef BOOL WINAPI (* AddClipboardFormatListenerProc)(HWND hwnd);
 typedef BOOL WINAPI (* RemoveClipboardFormatListenerProc)(HWND hwnd);
 //---------------------------------------------------------------------------
 //---------------------------------------------------------------------------
-// Taken from https://www.codeproject.com/articles/Undocumented-List-View-Features
+// Taken from https://web.archive.org/web/20250818222501/https://www.codeproject.com/Articles/35197/Undocumented-List-View-Features
 //---------------------------------------------------------------------------
 #define LVM_QUERYINTERFACE (LVM_FIRST + 189)
 //---------------------------------------------------------------------------