The final version of the MS JVM can only be installed as an update to a previous install.
The command line switch /q may cause a "Reboot" dialogue to appear pausing automated installation.
Extract a version prior to 5.00.3810 e.g. 5.00.3809:
msjavx86.exe /q /c /t:<folder>\3809
Extract version 5.00.3810:
msjavwu.exe /q /c /t:<folder>\3810
Copy javatrig.exe from <folder>\3809 to <folder>\3810
Install silently with the following command:
<folder>\3810\javatrig.exe /l /exe_install /nowincheck /q
Alternatively the following command should work with extracted versions:
rundll32.exe setupapi.dll,InstallHinfSection BaseInstallation 128 <folder>\3810\java.inf
Another alternative is to install both packages:
msjavx86.exe /q /r:n
msjavwu.exe /c:"javatrig.exe /exe_install /l /q" /q:a /r:n
Version 5.00.3809 is available from:
http://theether.net/download/Microsoft/MSJVM/msjavx86.exe
Version 5.00.3810 is available from:
http://theether.net/download/Microsoft/MSJVM/msjavwu.exe