When  I tried to update fiddler i get this .net exception:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ComponentModel.Win32Exception (0x80004005): The operation was canceled by the user
at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
at „‡.ˆ.‡(Object , AsyncCompletedEventArgs ) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\v4\Common\Application\AutoUpdate\DownloadUpdateForm.cs:line 155
at System.Net.WebClient.OnDownloadFileCompleted(AsyncCompletedEventArgs e)


************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
Fiddler
Assembly Version: 4.6.20171.14978
Win32 Version: 4.6.20171.14978
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Fiddler.exe
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
Xceed.Zip.v5.4
Assembly Version: 5.4.13572.13590
Win32 Version: 5.4.13572.13590
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Zip.v5.4.DLL
----------------------------------------
Xceed.Compression.Formats.v5.4
Assembly Version: 5.4.13572.13590
Win32 Version: 5.4.13572.13590
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Compression.Formats.v5.4.DLL
----------------------------------------
Xceed.FileSystem.v5.4
Assembly Version: 5.4.13572.13590
Win32 Version: 5.4.13572.13590
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.FileSystem.v5.4.DLL
----------------------------------------
Xceed.Compression.v5.4
Assembly Version: 5.4.13572.13590
Win32 Version: 5.4.13572.13590
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Compression.v5.4.DLL
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Telerik.Analytics
Assembly Version: 4.0.104.0
Win32 Version: 4.0.104
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Telerik.Analytics.DLL
----------------------------------------
Standard
Assembly Version: 2.6.2.0
Win32 Version: 2.6.2.0
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Inspectors/Standard.dll
----------------------------------------
SyntaxView
Assembly Version: 2.6.2.0
Win32 Version: 2.6.2.0
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Inspectors/SyntaxView.dll
----------------------------------------
Geoedge
Assembly Version: 1.2.5.0
Win32 Version: 1.2.5.0
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Scripts/Geoedge.dll
----------------------------------------
RulesTab2
Assembly Version: 2.6.2.0
Win32 Version: 2.6.2.0
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Scripts/RulesTab2.dll
----------------------------------------
SimpleFilter
Assembly Version: 2.6.2.0
Win32 Version: 2.6.2.0
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Scripts/SimpleFilter.dll
----------------------------------------
Timeline
Assembly Version: 2.6.0.3
Win32 Version: 2.6.0.3
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Scripts/Timeline.dll
----------------------------------------
Microsoft.JScript
Assembly Version: 10.0.0.0
Win32 Version: 14.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll
----------------------------------------
System.Windows
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1586.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Windows.dll
----------------------------------------
JScript Thunk Assembly
Assembly Version: 0.0.0.0
Win32 Version: 14.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll
----------------------------------------
8IBw0-81
Assembly Version: 0.0.0.0
Win32 Version: 14.6.1586.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll
----------------------------------------
Microsoft.mshtml
Assembly Version: 7.0.3300.0
Win32 Version: 7.0.3300.0
CodeBase: file:///C:/Windows/assembly/GAC/Microsoft.mshtml/7.0.3300.0__b03f5f7f11d50a3a/Microsoft.mshtml.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.