Detecting and Installing JRE

Hello
I'm a setup developer, and I'm tryng to detect from my setup program if the JRE is installed, all that by code, searching the registry whatever, then if it's not installed launch a Silent mode installation of JRE, But I don't know how to do it
How you can detect the installed JRE ?
How you can install JRE in silent mode?
Thanks

Can you detect JRE ?
The answer is yes. You have to read the registry and look for the uninstall string ( if you are using the 1.5.0 beta1 that got released today ) this is the registry value
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{3248F0A8-6813-11D6-A77B-00B0D0150000}
and the string is
MsiExec.exe /I{3248F0A8-6813-11D6-A77B-00B0D0150000}
look for these registry keys and you have detected the JRE
Is there a silent installation ?
Yes the command is
<jre>.exe /S /V" /qn"

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(Please take a moment to "Vote as Helpful" and/or "Mark as Answer", where applicable.
This helps the community, keeps the forums tidy, and recognises useful contributions. Thanks!)

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Last edited by fini_fly (2009-12-17 16:56:07)

tdy wrote:
fini_fly wrote:I would like to install freeCAD, but this depends on OpenJDK and not JRE.
Where do you see this requirement? I don't see anything that specifically depends on openjdk6. The only java deps I see are in opencascade. It depends on java-runtime and makedepends on java-environment, which can be satisfied by jre + jdk.
When I went to install, it was forcing me to install OpenJDK and uninstall JRE.

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Detecting and Installing JRE

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