My work on Windows requires my JAVA_HOME point to a 64-bit JDK, but this
doesn't play well with the 'vncviewer-java.bat' script, which expects
JAVA_HOME to point to a 32-bit JDK if it is set. I would like to submit an
enhanced launch script for consideration.
<code>
@echo off
setlocal enableextensions enabledelayedexpansion
rem Find the 32-bit JRE
if defined PROGRAMFILES(x86) (set "reg=%windir%\SysWOW64\reg") else set
"reg=reg"
set "branch=HKLM\Software\JavaSoft\Java Runtime Environment"
for /f "tokens=3" %%v in ('%reg% query "%branch%" /v "CurrentVersion" ^|
find "REG_SZ"') do (
for /f "tokens=2*" %%I in ('%reg% query "%branch%\%%v" /v "JavaHome" ^|
find "REG_SZ"') do (
set "JRE32=%%J"
)
)
echo Location of 32-bit java.exe: %JRE32%\bin
if DEFINED JAVA_HOME goto java_home_defined
set JAVA=java
goto java_home_undefined
:java_home_defined
if defined PROGRAMFILES(x86) goto java_home_64bit
set JAVA_HOME=%JAVA_HOME:"=%
if "%JAVA_HOME%"=="" (
set JAVA=java
) else (
set JAVA=%JAVA_HOME%\bin\java.exe
set JAWT_PATH=%JAVA_HOME%\bin
)
if DEFINED JAWT_PATH goto jawt_path_defined
:java_home_undefined
rem This should work with Java 7 and later.
for /f "delims== tokens=2,3*" %%i in ('"%JAVA% -XshowSettings:properties
-version 2>&1 | findstr sun.boot.library.path"') do set _TMP=?%%i
set _TMP2=%_TMP:? =%
if EXIST "%_TMP2%\jawt.dll" set JAWT_PATH=%_TMP2%
if DEFINED JAWT_PATH goto jawt_path_defined
rem Maybe we're using Java 6?
if EXIST "c:\Program Files\Java\jre6\bin\jawt.dll" set JAWT_PATH=c:\Program
Files\Java\jre6\bin
if DEFINED JAWT_PATH goto jawt_path_defined
echo WARNING: Could not find jawt.dll. Some features may not work properly.
goto start
:java_home_64bit
rem Check for 64-bit JAVA_HOME
if "%JAVA_HOME:~0,16%"==%PROGRAMFILES% (
rem Cannot use 64-bit Java, unset JAVA_HOME
echo Unset 64-bit JAVA_HOME
set JAVA_HOME=
set JAVA=%JRE32%\bin\java.exe
set JAWT_PATH=%JRE32%\bin
goto jawt_path_defined
) else (
rem JAVA_HOME is 32-bit Java
set JAVA=%JAVA_HOME%\bin\java.exe
set JAWT_PATH=%JAVA_HOME%\bin
)
:jawt_path_defined
echo JAWT_PATH=%JAWT_PATH%
set PATH=%JAWT_PATH%;%PATH%
echo jawt.dll path: %JAWT_PATH%
goto start
:start
"%JAVA%" -Dsun.java2d.d3d=false -Djava.library.path="%~d0%~p0java" -jar
"%~d0%~p0java\VncViewer.jar" -reqarch x86 %*
</code>
Kind regards,
Curt
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