diff --git a/addon/download.php b/addon/download.php
new file mode 100644
index 000000000..0f9367a9a
--- /dev/null
+++ b/addon/download.php
@@ -0,0 +1,27 @@
+<?php
+/*
+This file serves the latest Java version locations for the Windows installer. 
+
+JAVA VERSION
+http://www.java.com/de/download/manual.jsp BundleId +1 / +2
+
+$_GET['what']		should be 'jre'
+$_GET['version']	32 or 64 (bit)
+$_GET['yacyrevnr']	not used yet
+
+*/
+
+
+if ($_GET['what'] == 'jre') {
+	
+	if($_GET['version'] == 32)
+		// jre-6u18-windows-i586.exe
+		header('Location: http://javadl.sun.com/webapps/download/AutoDL?BundleId=37718');
+
+	if($_GET['version'] == 64)
+		// jre-6u18-windows-x64.exe
+		header('Location: http://javadl.sun.com/webapps/download/AutoDL?BundleId=37401');
+
+}
+
+?>
diff --git a/build.nsi b/build.nsi
index dc2fa6a37..8e483a25f 100755
--- a/build.nsi
+++ b/build.nsi
@@ -1,7 +1,7 @@
 ;yacy.nsi
 ; ----------------------------------------
 ;(C) 2004-2006 by Alexander Schier
-;(C) 2008 by David Wieditz
+;(C) 2008-2010 by David Wieditz
 /*----------------------------------------
 MANUALS
 http://nsis.sourceforge.net/Docs/
@@ -36,8 +36,8 @@ OutFile "RELEASE\WINDOWS\yacy_v@REPL_VERSION@_@REPL_DATE@_@REPL_REVISION_NR@.exe
 InstallDir "$PROFILE\YaCy"
 InstallDirRegKey HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\YaCy" "UninstallString"
 
-;requested execution level on Vista
-RequestExecutionLevel user
+;requested execution level on Vista / 7
+RequestExecutionLevel admin
 
 SetCompressor /SOLID LZMA
 !insertmacro MUI_RESERVEFILE_LANGDLL ;loads faster
@@ -48,7 +48,9 @@ SetCompressor /SOLID LZMA
 
 !define JRE_VERSION6 "1.6"
 !define JRE_32 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=37718" ;jre-6u18-windows-i586.exe
-!define JRE_64 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=37401" ;jre-6u18-windows-x64.exe
+!define JRE_64 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=37401" ;jre-6u18-windows-x64.exe
+;!define JRE_32 "http://yacyweb.de/download.php?what=jre&version=32&yacyrevnr=@REPL_REVISION_NR@"
+;!define JRE_64 "http://yacyweb.de/download.php?what=jre&version=64&yacyrevnr=@REPL_REVISION_NR@"
 
 ; ----------------------------------------
 ; GENERAL APPEARANCE
@@ -205,7 +207,7 @@ SectionEnd
 ; FUNCTIONS
 
 Function GetJRE
-; based on http://nsis.sourceforge.net/Simple_Java_Runtime_Download_Script	
+; based on http://nsis.sourceforge.net/Simple_Java_Runtime_Download_Script
     ${If} ${RunningX64}
     StrCpy $3 ${JRE_64}
     ${Else}
@@ -214,7 +216,7 @@ Function GetJRE
     
 	userInfo::getAccountType
 	Pop $0
-		StrCmp $0 "Admin" download
+		StrCmp $0 "Admin" download ; download without message if admin
 		MessageBox MB_ICONEXCLAMATION "$(noAdminForJava)" /SD IDOK
     download:
 	SetShellVarContext all
@@ -225,7 +227,7 @@ Function GetJRE
 		StrCmp $R0 "success" +3
 		MessageBox MB_OK "Download failed: $R0" /SD IDOK
 		Return
-	StrCmp $0 "Admin" install
+	StrCmp $0 "Admin" install ; install if admin
 		CreateShortCut "$DESKTOP\Install Java for YaCy.lnk" "$2"
 		Return ; don't delete if not admin
     install:
@@ -238,4 +240,4 @@ Function DetectJRE
 	StrCmp $2 ${JRE_VERSION6} doneDetectJRE
 	Call GetJRE
 	doneDetectJRE:
-FunctionEnd
\ No newline at end of file
+FunctionEnd