Deploying a JAVA application with Wix Tool Set

As I was trying to build a installer for java application using Wix that could detect JRE Installation and install only if JRE was present. I stumbled across a number of forums and blogs.Finally I found a good solution. The key steps involved were 
 1.Setting the working directory for a java application in the start menu shortcut properties

 2. Check the registry for existence of specific JRE versions .


The highlighted Grey text in the mark up shown below emphasises the same

<?xml version="1.0" encoding="UTF-8"?>

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">

      <Product Id="07f0003f-4290-4f4c-9442-c2d203f64b4f" Name="TestJar " Language="1033" Version="1.0.0.0" Manufacturer="abc" UpgradeCode="00e83a73-37c7-4ec0-88f4-9612dcb05a0d">

            <Package InstallerVersion="200" Compressed="yes" />

            <Media Id="1" Cabinet="media1.cab" EmbedCab="yes" />

    <Directory Id="TARGETDIR" Name="SourceDir">

      <Directory Id="ProgramFilesFolder"  Name="ProgramFilesFolder">

        <Directory Id="INSTALLLOCATION" Name="TestJar">

          <Component Id="component1" Guid="323CBA27-E825-4b15-B297-ABBEA9B686DA">

            <File Id='Test.jar' Name='Test.jar'  DiskId='1'                                      Source="E:\JavaProj\Bin\Test.jar" Vital='yes'/>

            <File Id='Start.bat' Name='Start.bat'  DiskId='1'

                   Source="E:\JavaProj\Bin\Start.bat" Vital='yes'/>

          </Component>

</Directory>   

      <Directory Id="StartMenuFolder" >

        <Directory Id ="ProgramMenuFolder">

          <Directory Id="TestJar" Name ="TestJar">

            <Component Id ="component3" Guid ="92B0EDF4-664E-4707-AD32-066DD3993A57"  >

              <Registry Root="HKCU" Key ="Software\[Manufacturer]\[ProductName]" Value ="[INSTALLLOCATION]" Type ="string" KeyPath ="yes" />

              <Shortcut Id="MyTestShortCutA"  Directory ="TestJar "  Name="testjar "   Icon ="icon1" Show="normal" WorkingDirectory="INSTALLLOCATION"  Target ="[!start.bat]">

            <Icon Id="icon1" SourceFile="E:\JavaProj\Bin\images\User1.ico" />

              </Shortcut>

            </Component >

          </Directory >

        </Directory>

      </Directory>

    </Directory >

    </Directory >

        <Property Id="JAVA_CURRENT_VERSION">

      <RegistrySearch Id="JRE_KEY" Root="HKLM" Key="SOFTWARE\JavaSoft\Java Runtime Environment" Name="EVersion" Type="raw"  />

    </Property>

    <Condition Message="Java not installed  Please install JRE 1.6 or later."><![CDATA[(Installed OR JAVA_CURRENT_VERSION) AND JAVA_CURRENT_VERSION >= "1.6"]]></Condition>      

    <Feature Id='Complete' Level='1' ConfigurableDirectory ='INSTALLLOCATION'>

      <ComponentRef Id='component1' />

      <ComponentRef Id='component3' />

    </Feature >

     <Property Id="WIXUI_INSTALLDIR" Value="INSTALLLOCATION" ></Property>

    <WixVariable Id="WixUIBannerBmp" Value="E:\JavaProj\Bin\images\Test.bmp" />

    <WixVariable Id="WixUIDialogBmp" Value="E:\JavaProj\Bin\images\blank.bmp" />

    <UIRef Id="WixUI_InstallDir" /> 

      </Product>

</Wix>


Note:Registry search keys may change depending on different JRE Versions.