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Fidler2setup.exe /S fai;les with RC=4444 on machines with .NET 2 Installed!

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Dennis asked on 01 Jul 2014, 10:54 PM
The latest (and previous versions) of Fidler2setup.exe /S (for Silent) fail to install with Return Code 4444.

If there is a log I don't know where to find it and as NSIS is used there is no logging command line switch (a good enough reason to switch I'd have thought). A windows installer version would be much better (you could look at my free MAKEMSI tool, for easy command line msi building).

The required dot net version is installed:

ASoft .NET Version Detector Report
Download latest version at

==== INFO ====
Created :2014/07/02 - 08:08:57

==== FOLDERS ====

==== Installed .NET Frameworks ====
.NET FW 2.0
==== END REPORT ====

Any ideas? Any other ways of installing it? I don't want to manually do it, has to be automated.

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answered on 02 Jul 2014, 10:56 PM
Got this reply on the google group:

>From: "EricLaw" <>
>Date: 03/07/2014 1:45 am
>Subject: [Fiddler] - 4717 Re: FIDDLER 2 SETUP (/S for silent mode) not Installing on Workstations with Dot Net 2 (RC=4444)!
>To: <>

>Fiddler requires .NET2.0 Service Pack 1 (v2.0.50727.1433) or preferably later. 
> For security and reliability reasons, you should always install the latest service packs.

Thanks for that response. I have no control over the environment and can't install updates etc to it so I probably won't be able to use fiddler....
The download page "" doesn't correctly list the requirements, could this be updated?
Does the installer log anywhere? How do I know why it fails?
I did notice that although the installer returns 4444, all the files seem to have been installed....

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