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Fiddler does not launch on Win 8.1

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Jürgen
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Jürgen asked on 16 Aug 2014, 06:16 AM
On my Windows 8.1 Fiddler 4 (most recent version) only shows the splash screen and onle occasionally the warning dialog about Windows 8 when launching. After that it just crashes without any error message. I did not find any information about that in the event log.

How could I find out what the cause could be?

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Jürgen
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answered on 16 Aug 2014, 07:17 AM
Found the reason: I have Password Safe 7 installed. Fiddler just starts fine if Password Safe is not running but crashes if Password Safe is running. Still don't know what the real cause is (could I somehow solve this issue?).
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Eric Lawrence
Telerik team
answered on 18 Aug 2014, 05:21 PM
Hi, Jurgen--

I'd talk to the folks behind "Password Safe 7" to determine where their bug lies. Unfortunately, there appear to be many different products called "Password Safe" so I can't try it out myself.

Regards,
Eric Lawrence
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Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

 
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Jürgen
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answered on 18 Aug 2014, 05:28 PM
Thanks for the reply, Eric. It's this Password Safe: http://www.passwordsafe.de/en/products/private-user/standard-edition.html.
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Eric Lawrence
Telerik team
answered on 18 Aug 2014, 06:05 PM
Hi, Jurgen--

That product contains the following very questionable code:

   while (true)
   {
     foreach (window in System) {
         if (window.title == "Fiddler HTTP Debugger") Process.Kill(window.owner);
     }
   }

You may wish to consider whether a product so careless is something you want to use.

Regards,
Eric Lawrence
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Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

 
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Jürgen
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answered on 20 Aug 2014, 03:58 AM
Thanks, Erik.

That code ist just unbelievable (I am a programmer myself). I will contact them about that.
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Jürgen
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answered on 20 Aug 2014, 04:05 AM
By the way: How did you decompile the code?
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Eric Lawrence
Telerik team
answered on 20 Aug 2014, 06:17 PM
That's just pseudo-code. If you try to use notepad to save a file with the word "Debugger" in the title, you'll see that they kill notepad.

I've filed a support ticket in their system, but it's not clear that they'll respond to it.

Regards,
Eric Lawrence
Telerik
 

Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

 
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Jürgen
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answered on 22 Aug 2014, 07:41 AM
Thanks for the update, Eric. Tried the Notepad test myself. Unbelievable. I sent them a quite angry e-mail about that.
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Jürgen
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Eric Lawrence
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