Can't set default mail client in mailto

  • Thread starter Thread starter 'Captain' Kirk DeHaan
  • Start date Start date
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'Captain' Kirk DeHaan

This is in XP but should be relevant.

On one of my users the default mail client cannot be set. I'm using
Thunderbird and every time it starts it asks if it should be the
default. Saying yes, and clicking the don't ask again, appears to set
it but going into Thunderbird options the default mail check box is
unchecked. Checking, exiting and reopening options shows it to be
unchecked.

The registry entry HKEY_CLASSES_ROOT/mailto permissions are corrupted.
Originally there was no subentries under mailto and the permissions were
set for another user. Changing mailto to the current user showed the
subentries but I still cannot change any of them nor can i give
ownership to any of them. I cannot delete the mailto entry either in an
attempt to reconstruct the entries from another user. All users on this
system have admin permissions.

I can still use mail but this is annoying and not right as far as the
ability to edit the registry.

Any pointers?
 
'Captain' Kirk DeHaan said the following on 1/31/2007 1:31 PM:
This is in XP but should be relevant.

On one of my users the default mail client cannot be set. I'm using
Thunderbird and every time it starts it asks if it should be the
default. Saying yes, and clicking the don't ask again, appears to set
it but going into Thunderbird options the default mail check box is
unchecked. Checking, exiting and reopening options shows it to be
unchecked.

The registry entry HKEY_CLASSES_ROOT/mailto permissions are corrupted.
Originally there was no subentries under mailto and the permissions were
set for another user. Changing mailto to the current user showed the
subentries but I still cannot change any of them nor can i give
ownership to any of them. I cannot delete the mailto entry either in an
attempt to reconstruct the entries from another user. All users on this
system have admin permissions.

I can still use mail but this is annoying and not right as far as the
ability to edit the registry.

Any pointers?

Another strange effect...

I did manage to get the mailto subtree to appear by changing
permissions. I honestly am not sure what did the change. After
changing the permissions I still did not have access. After trying to
make a NEW key the others appeared and then I had access. I repeated
this process until the whole subtree was visible and Thunderbird was now
the default mail client for THAT user. I logged out and back in as a
user that WAS functioning properly and Thunderbird now asks to be the
default mail client. However the settings will not stay. Same issue as
the other user. Why is one affecting the other? Aren't they separate
registry files? There appears to be something in common here but what?
 
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