Hello,
Thanks a lot for helping me. I hope we will get this to work properly

We need from you some additional information to help you with the issue.
1) What edition of Vista do you have? (Home, Enterprise, ...)?
Vista Business X64, service pack 2.
2) Do you have any other Comodo software products installed?
Comodo Internet Security 3.12
(I have replaced Nod32 4 with CIS 4 days ago. I am pleased with it and see that the Anti-virus part is improving fast, so I am keeping CIS. This is also the reason why I am trying the other Comodo software, and in this case I am trying CSE again - CSE didn't work for me when I first tried it a few months ago, so today I am putting a little more effort into getting it to work.)3) Do you have any other security software (firewall, antivirus, antispam, etc.) installed?
No. edit: Yes, Malwarebytes Anti-Malware, but it is on-demand only, so it isn't running.
The vista firewall is disabled. I only have CIS (I have uninstalled Nod32 before installing CIS).
4) Did you try running SecureEmail uninstaller using "Run as Administrator" option?
Yes.
Also, this question reminds me of a "behavioral" problem with the CSE installer. When I fist installed it, the installer didn't work before I launched it with "Run as Administrator". Under vista applications are supposed to ask for this privilege automatically, so this is something (a detail) you might want to improve in a future version.5) Could you send us screenshots of the "Wrong parameter" dialog both when you try to change settings and uninstall?
File 1: SCE_32bit_click_on_PROPERTIES_shows_this_popup.jpgThis is what happens when I click on "properties" in the 32bit version (I cannot see the settings in the 32bit version, but in the x64 version I can)
File 2: SCE_x64_click_on_OK_to_apply_shows_this_popup.jpgIn the x64 version I can see and edit the settings. But when I click on "OK" to apply them I get this popup.
File 3: SCE-uninstaller_32bit+x64-same_click_on_NEXT_shows_this_popup.jpgThe same problem happens with the 32bit and the x64 versions of the uninstaller.
BTW, as you can see there is a (minor) problem with the application translation (it is not complete). The application is in English, but the popup and the buttons in the uninstaller are in French (my vista is in French).
(French "paramètre incorrecte" = English "Wrong parameter")
6) Could you export and send us the following registry keys - HKEY_LOCAL_MACHINE\Software\ComodoGroup and
HKEY_CURRENT_USER\Software\ComodoGroup?
I have attached everything (the 2 reg files + the 3 jpgs are in the attached 7z archive).
Thanks.
edit: I didn't have this "Wrong parameter" popup problem when SecureEmail x64 was installed alone. This problem only appeared after I added the 32bit version.
To summarize, I see 3 problems:1. There is a conflict between the 32bit and the 64bit versions of SecureEmail.2. The 32bit version only sees and imports 32bit email apps, and the 64bit version only works with 64bit email apps.
3. There is a problem with Thunderbird, because neither the 32bit nor the 64bit version of SecureEmail sees it (during install when importing the settings).
edit 2: since I have installed CSE 32bit I now get a popup everytime I start Thunderbird, asking me if I want it to check my emails for encrypted mails. (this leads me to think that it would probably work if the x64 version was not installed?

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