SUN jre broke registry

Hi Folks,

I have a really annoying problem.

I installed the SUN j2ee appserver incl jdk and jre for evaluation
purposes (playing around). Then an update to jre 1.5.06 was suggested.
Did that.
Was too lazy do to "custom install" so the stupid installer installed
that update in a different jre folder. Didn't want several different
jre's flying around. So uninstalled and reinstalled the update. Then
the jre didn't work even though everything seemed to be in good order,
vars, paths, plugins u name it. Didn't suspect anything critical at
that stage. So uninstalled everything, appserver, jdk, jre, update.
Complete cleanup (or so I thought). Reinstalled evrything, but it's
still not working.
Now I started to wonder and had a closer look what the story was.
Problems seems to be that the SUN installer messed up the registry. To
be more precise the keys HKCR ".jar", ".jnlp", "jarfile", "JavaPlugin"
and "JavaPlugin.150_06", maybe a few others, are completely
unaccessible. They appear to be there but they cannot be deleted,
overwritten or modified in any shape or form. When I try to set
properties the system says I haven't permissions to view them but I can
set them (now here's some logic). Ok, tried that. Regedit then shows no
owners. not even "CREATOR" or "SYSTEM". But then again the system says
I can't view them anyway. No matter what I try here (means assigning
user objects, modify access rights) it gives either "error" or "acces
denied". Needless to say the SUN installer couldnt fix it either.
Tried a few third party registry tools, no joy. Tried the registry api
functions like "RegistryOpenEx" or "RegistryDelete" directly from a
small c program, no joy. Gives error 5 "access denied".

Is there any hope I wonder? Any chance to get rid of these keys?

Because as it stands I will never have java on this box again unless
I'm willing to fry the entire installation. I mean it might not have
been very clever what I did to begin with, but how can the system allow
registry api calls that render keys useless? And what the heck was that
SUN installer "thinking".

cheers

Carsten

.

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