diff --git a/packages/vcl-compat/src/system.analytics.pp b/packages/vcl-compat/src/system.analytics.pp
index 0c56416630..30ec9a3777 100644
--- a/packages/vcl-compat/src/system.analytics.pp
+++ b/packages/vcl-compat/src/system.analytics.pp
@@ -1,3 +1,18 @@
+{
+    This file is part of the Free Pascal Run Time Library (rtl)
+    Copyright (c) 1999-2019 by the Free Pascal development team
+
+    This file provides the base of an application analytics system.
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+
 unit System.Analytics;
 
 {$MODE OBJFPC}
diff --git a/packages/vcl-compat/src/system.ansistrings.pp b/packages/vcl-compat/src/system.ansistrings.pp
index f8af19d271..e0d3c1136b 100644
--- a/packages/vcl-compat/src/system.ansistrings.pp
+++ b/packages/vcl-compat/src/system.ansistrings.pp
@@ -1,3 +1,19 @@
+{
+    This file is part of the Free Pascal Run Time Library (rtl)
+    Copyright (c) 2023 by the Free Pascal development team
+
+    This file provides an ansistring unit as delphi has it.
+    Most routines are present in the SysUtils and StrUtils unit.
+    Do not use this for new FPC code.
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
 unit System.AnsiStrings;
 
 {$mode objfpc}
diff --git a/packages/vcl-compat/src/system.devices.pp b/packages/vcl-compat/src/system.devices.pp
index d3ff532e09..57c6fc82ee 100644
--- a/packages/vcl-compat/src/system.devices.pp
+++ b/packages/vcl-compat/src/system.devices.pp
@@ -1,9 +1,8 @@
 {
     This file is part of the Free Pascal Run Time Library (rtl)
-    Copyright (c) 1999-2019 by the Free Pascal development team
+    Copyright (c) 2023 by the Free Pascal development team
 
-    This file provides the base for the pluggable sorting algorithm
-    support. It also provides a default QuickSort implementation.
+    This file provides the base for a devices registry.
 
     See the file COPYING.FPC, included in this distribution,
     for details about the copyright.
diff --git a/packages/vcl-compat/src/system.imagelist.pp b/packages/vcl-compat/src/system.imagelist.pp
index bdbfd53f94..d663fe16fd 100644
--- a/packages/vcl-compat/src/system.imagelist.pp
+++ b/packages/vcl-compat/src/system.imagelist.pp
@@ -1,3 +1,18 @@
+{
+    This file is part of the Free Pascal Run Time Library (rtl)
+    Copyright (c) 2023 by the Free Pascal development team
+
+    This file provides the base of an image list.
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+
 {$mode objfpc}
 {$h+}
 unit System.ImageList;