diff --git a/.gitattributes b/.gitattributes
index d977a3ff46..f36f3c0244 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -933,6 +933,7 @@ docs/images/cheetah1.png -text svneol=unset#image/png
 docs/images/laztitle.jpg -text svneol=unset#image/jpeg
 docs/index.html svneol=native#text/html
 docs/lazbuild.1 svneol=native#text/plain
+docs/thirdparty.txt svneol=native#text/plain
 docs/xml/README.txt svneol=native#text/plain
 docs/xml/find_cvs_fpdoc_files.pl -text svneol=native#application/x-perl
 docs/xml/lcl/actnlist.xml svneol=LF#text/xml eol=lf
diff --git a/docs/thirdparty.txt b/docs/thirdparty.txt
new file mode 100644
index 0000000000..96b0ab574b
--- /dev/null
+++ b/docs/thirdparty.txt
@@ -0,0 +1,6 @@
+Lazarus is using folowing third party libraries and tools
+
+Icon sets:
+
+- Silk icon set 1.3 by Mark James (http://www.famfamfam.com/lab/icons/silk/)
+- Tango Icon Library (http://tango.freedesktop.org/Tango_Icon_Library)
\ No newline at end of file
diff --git a/ide/aboutfrm.lfm b/ide/aboutfrm.lfm
index 750d65d50e..18c5f5e17c 100644
--- a/ide/aboutfrm.lfm
+++ b/ide/aboutfrm.lfm
@@ -114,5 +114,16 @@ object AboutForm: TAboutForm
         TabOrder = 0
       end
     end
+    object ThirdPartyPage: TPage
+      Caption = 'Third party products'
+      object ThirdPartyMemo: TMemo
+        Height = 231
+        Width = 385
+        Align = alClient
+        ReadOnly = True
+        ScrollBars = ssAutoBoth
+        TabOrder = 0
+      end
+    end
   end
 end
diff --git a/ide/aboutfrm.lrs b/ide/aboutfrm.lrs
index 5546b38c31..947a748353 100644
--- a/ide/aboutfrm.lrs
+++ b/ide/aboutfrm.lrs
@@ -1,5 +1,3 @@
-{ This is an automatically generated lazarus resource file }
-
 LazarusResources.Add('TAboutForm','FORMDATA',[
   'TPF0'#10'TAboutForm'#9'AboutForm'#4'Left'#3'_'#1#6'Height'#3#14#1#3'Top'#3
   +#133#1#5'Width'#3'`'#2#18'HorzScrollBar.Page'#3'_'#2#18'VertScrollBar.Page'#3
@@ -35,5 +33,8 @@ LazarusResources.Add('TAboutForm','FORMDATA',[
   +#7#8'alClient'#8'ReadOnly'#9#10'ScrollBars'#7#10'ssAutoBoth'#8'TabOrder'#2#0
   +#0#0#0#5'TPage'#16'ContributorsPage'#7'Caption'#6#12'Contributors'#0#5'TMemo'
   +#16'ContributorsMemo'#6'Height'#3#231#0#5'Width'#3#129#1#5'Align'#7#8'alClie'
-  +'nt'#8'ReadOnly'#9#10'ScrollBars'#7#10'ssAutoBoth'#8'TabOrder'#2#0#0#0#0#0#0
+  +'nt'#8'ReadOnly'#9#10'ScrollBars'#7#10'ssAutoBoth'#8'TabOrder'#2#0#0#0#0#5'T'
+  +'Page'#14'ThirdPartyPage'#7'Caption'#6#20'Third party products'#0#5'TMemo'#14
+  +'ThirdPartyMemo'#6'Height'#3#231#0#5'Width'#3#129#1#5'Align'#7#8'alClient'#8
+  +'ReadOnly'#9#10'ScrollBars'#7#10'ssAutoBoth'#8'TabOrder'#2#0#0#0#0#0#0
 ]);
diff --git a/ide/aboutfrm.pas b/ide/aboutfrm.pas
index 242a31494f..ad22478572 100644
--- a/ide/aboutfrm.pas
+++ b/ide/aboutfrm.pas
@@ -40,14 +40,17 @@ type
     PlatformLabel: TLabel;
     VersionLabel: TLABEL;
     ContributorsMemo:TMemo;
+    ThirdPartyMemo:TMemo;
     RevisionLabel: TLabel;
     Notebook1:TNotebook;
     AboutPage:TPage;
     ContributorsPage:TPage;
+    ThirdPartyPage:TPage;
     procedure AboutFormCreate(Sender:TObject);
   private
     FPixmap : TPixmap;
     procedure LoadContributors;
+    procedure LoadThirdParty;
   public
     procedure Paint; override;
     constructor Create(TheOwner: TComponent); override;
@@ -139,6 +142,7 @@ begin
     +'Tutorials: http://lazarus-ccr.sourceforge.net'+LineEnding
     ;
   LoadContributors;
+  LoadThirdParty;
   CloseButton.Caption:=lisClose;
 end;
 
@@ -156,6 +160,19 @@ begin
     ContributorsMemo.Text:=lisAboutNoContributors;
 end;
 
+procedure TAboutForm.LoadThirdParty;
+var
+  ThirdPartyFileName: string;
+begin
+  ThirdPartyFileName:=
+    AppendPathDelim(EnvironmentOptions.LazarusDirectory)
+    +'docs'+PathDelim+'thirdparty.txt';
+  if FileExists(ThirdPartyFileName) then
+    ThirdPartyMemo.Lines.LoadFromFile(ThirdPartyFileName)
+  else
+    ThirdPartyMemo.Text:=lisAboutNoContributors;
+end;
+
 procedure TAboutForm.Paint;
 begin
   inherited Paint;