sap NetWeaver2004s를 다운받아서 압축푼후 SAPinst.bat 을 클릭하면  아래와 같은 오류가 나타나면서 설치가 안되네요~

(시스템환경, jdk 설치 및 환경변수 설정, 네트워크 연결은 이상없음)

여러 고수님들의 조언 부탁 드립니다.

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오류내역

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SAPinst is getting started.
Please be patient ...

starting gui server process:
  sapinstport: 21200
  guiport    : 21212
  command    : "C:j2sdk1.4.2_12jre;binjavaw.exe" -cp "C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/1/sapinst_exe.1312.1212657724jarinstgui.jar;C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/1/sapinst_exe.1312.1212657724jarinqmyxml.jar" -Xmx256M -Dsun.java2d.noddraw=true SDTServer config=jar:sdtserver.xml guiport=21212 sapinsthost=localhost sapinstport=21200

The process that should run the GUI Server could not be started.
 Please make sure that a JDK is installed on this host and that SAPINST_JRE_HOME points to the root
 directory of your Java installation. As an alternative you may start the GUI Server on another host
 (for details please consult the installation guide).

103 controller.errorStartingGuiWindows  1580
Exit status of child: 1