Re: Problem with mailto:
![Vincenzo Di Russo [MVP]'s profile photo](https://lh3.googleusercontent.com/a/default-user=s40-c)
Vincenzo Di Russo [MVP]
> I have been trying to diagnose a problem for a few days now, where
> clicking on a "mailto:" link or issuing a "start mailto:" from a
> command prompt results in a delay, followed by a message box stating:
>
> "Could not perform this operation because the default mail client is
> not properly installed".
>
> Followed by 50+ Internet Explorer windows, most of which have an error
> about "Action Cancelled" and the string "mailto:" is in the location
> bar.
>
> I normally run as a power user and this recently started happening,
> after testing another e-mail client. If I run as administrator, or
> assign myself to the administrators groups, there is no problem.
>
> In debugging the problem, using SysInternals REGMON, I see that the
> starting the "mailto:" operation results in an open (or createkey)
> request for HKCR\mailto, which returns an ACCESS DENIED.
>
> Looks like a permission problem. So, I add Everyone with read only
> access to the key, and everything starts working again.
>
> My question: Is there a way to reset default permissions for this
> registry key (HKCR\mailto)? Or, more appropriately, reset default
> email client registry keys to default permissions/values for OE 6.x?
See here: http://windowsxp.mvps.org/MailtoProtocol.htm
"Multiple browser windows open when you click on a mailto: link".
--
Vincenzo Di Russo
Microsoft® MVP - Most Valuable Professional
Windows - Internet Explorer since 2003
http://support.microsoft.com/newsgroups
http://mvp.support.microsoft.com/
PA Bear
2. http://www.oehelp.com/oelnk.aspx
If still no joy, see:
SendTo and E-mail Links Do Not Work Using Outlook Express as Default
http://support.microsoft.com/?kbid=306098
Multiple browser windows open when you click on a mailto: link:
http://windowsxp.mvps.org/MailtoProtocol.htm
--
~Robear Dyer (PA Bear)
MS MVP-Windows (IE/OE, Shell/User, Security), Aumha.org VSOP, DTS-L.org
Frank Saunders, MS-MVP OE
news:4i4ts1507l68p7fij...@4ax.com
>
> My problem is that for some reason, my HKCR\mailto registry key had
> access only for Administrators and SYSTEM group.
>
> When running as a non-administator, access is denied on trying open
> the key. If I run as admin or add myself to the admin group,
> everything works as expected. But, I normally run as a power user.
>
> If I add permission for Everyone with read access on the key, I can
> use the mailto: links as expected. For some reason, the permissions on
> that key were reset/changed.
It has probably been reset by malware.
Malware Removal:
http://www.elephantboycomputers.com/page2.html#Removing_Malware
--
Frank Saunders, MS-MVP OE
Please respond in Newsgroup. Do not send email
http://www.fjsmjs.com
Protect your PC
http://www.microsoft.com/security/protect/
PA Bear
> > 1. http://www.oehelp.com/oedef.aspx; then...
> >
> > 2. http://www.oehelp.com/oelnk.aspx
> >
> > If still no joy, see:
> >
> > SendTo and E-mail Links Do Not Work Using Outlook Express as Default
> > http://support.microsoft.com/?kbid=306098
> >
> > Multiple browser windows open when you click on a mailto: link:
> > http://windowsxp.mvps.org/MailtoProtocol.htm
>
>
> 'Everyone' for the registry key using regedt32.
>
> For some reason, the permissions for HKCR\mailto appear to have been
> altered and only allow Administrators and SYSTEM group access to the
> key.
>
> None of the tips mentioned anything about resetting or checking
> registry key permissions.
Is this your personal machine or one belonging to your employer?
--
~PA Bear
PA Bear
Windows version? Is the machine fully up-to-date at Windows Update?
--
~PA Bear
PA Bear
>
> I resolved the problem by adding permissions for "Everybody" with read
> access to the registry key. Somehow, my HKCR\mailto had only ACLs for
> the Administrators and SYSTEM group. I checked a friend's system and
> the registry key had read access for the USERS group.
Understood. Just trying to figure out how that happened.
--
~PA Bear