Script failure on startup

Hans Malherbe

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Jul 12, 2010, 5:32:52 AM7/12/10

to Fiddler

I've tried the beta and the current version at http://www.fiddler2.com/Fiddler2/version.asp
The beta has a file version of 2.2.9.8 while the stable has the file
version 2.2.9.7.

On Windows XP SP3 with IE 8 both of these work.

On Windows 7 Professional 64-bit / Internet Explorer 8.0.7600.16385 it
fails with the message detailed below.
Any ideas?

---------------------------
Script Failure
---------------------------
Failed to load script.
Entry point was not found.
at Microsoft.Vsa.IVsaEngine.set_RootMoniker(String value)

at Fiddler.FiddlerScript._LoadScript(String sScriptFilename)

at Fiddler.FiddlerScript.LoadRulesScript()
---------------------------
OK
---------------------------

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

************** Exception Text **************
System.EntryPointNotFoundException: Entry point was not found.
at Microsoft.Vsa.IVsaEngine.Close()
at Fiddler.FiddlerScript.ClearScript()
at Fiddler.FiddlerScript.LoadRulesScript()
at Fiddler.frmViewer.frmViewer_Load(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Control.CreateControl(Boolean
fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at Fiddler.frmViewer.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
Fiddler
Assembly Version: 2.2.9.7
Win32 Version: 2.2.9.7
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Fiddler.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1 built by: RTMRel
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: 4.0.30319.1 built by: RTMRel
CodeBase:
file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1 built by: RTMRel
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1 built by: RTMRel
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
CodeBase:
file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
Xceed.Zip
Assembly Version: 4.2.10304.10260
Win32 Version: 4.2.10304.10260
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Zip.DLL
----------------------------------------
Xceed.Compression.Formats
Assembly Version: 4.2.10304.10260
Win32 Version: 4.2.10304.10260
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Compression.Formats.DLL
----------------------------------------
Xceed.Compression
Assembly Version: 4.2.10304.10260
Win32 Version: 4.2.10304.10260
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Compression.DLL
----------------------------------------
Xceed.FileSystem
Assembly Version: 4.2.10304.10260
Win32 Version: 4.2.10304.10260
CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.FileSystem.DLL
----------------------------------------
Microsoft.Vsa
Assembly Version: 8.0.0.0
Win32 Version: 8.0.50727.4927
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.Vsa/8.0.0.0__b03f5f7f11d50a3a/Microsoft.Vsa.dll
----------------------------------------
Microsoft.JScript
Assembly Version: 10.0.0.0
Win32 Version: 10.0.30319.1
CodeBase:
file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.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.

EricLaw

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Jul 12, 2010, 10:08:28 AM7/12/10

to Fiddler

This indicates that you have only .NET 4.0 installed and do not
have .NET Framework 2.0 installed. It's odd that Fiddler was able to
run at all, but to fix this, you'll need to install the .NET Framework
2.0 runtime as the installer should have suggested.

On Jul 12, 2:32 am, Hans Malherbe <hans.malhe...@gmail.com> wrote:
> I've tried the beta and the current version athttp://www.fiddler2.com/Fiddler2/version.asp

> 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: 4.0.30319.1 built by: RTMRel
> CodeBase:

> file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

> ----------------------------------------
> System
> Assembly Version: 4.0.0.0
> Win32 Version: 4.0.30319.1 built by: RTMRel

> CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll

> ----------------------------------------
> System.Xml
> Assembly Version: 4.0.0.0
> Win32 Version: 4.0.30319.1 built by: RTMRel

> CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll

> ----------------------------------------
> System.Configuration
> Assembly Version: 4.0.0.0
> Win32 Version: 4.0.30319.1 (RTMRel.030319-0100)
> CodeBase:

> file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

> ----------------------------------------
> Xceed.Zip
> Assembly Version: 4.2.10304.10260
> Win32 Version: 4.2.10304.10260
> CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Zip.DLL
> ----------------------------------------
> Xceed.Compression.Formats
> Assembly Version: 4.2.10304.10260
> Win32 Version: 4.2.10304.10260
> CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Compression.Formats.DLL
> ----------------------------------------
> Xceed.Compression
> Assembly Version: 4.2.10304.10260
> Win32 Version: 4.2.10304.10260
> CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.Compression.DLL
> ----------------------------------------
> Xceed.FileSystem
> Assembly Version: 4.2.10304.10260
> Win32 Version: 4.2.10304.10260
> CodeBase: file:///C:/Program%20Files%20(x86)/Fiddler2/Xceed.FileSystem.DLL
> ----------------------------------------
> Microsoft.Vsa
> Assembly Version: 8.0.0.0
> Win32 Version: 8.0.50727.4927

> CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.Vsa/8.0.0.0__b03f5f7f11d50a3a/Microsoft.Vsa.dll

> ----------------------------------------
> Microsoft.JScript
> Assembly Version: 10.0.0.0
> Win32 Version: 10.0.30319.1
> CodeBase:

> file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll

Hans Malherbe

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Jul 12, 2010, 1:58:31 PM7/12/10

to Fiddler

I downloaded the 64-bit .NET Framework 2.0. When I tried to install
it, a message displayed telling me that it was already installed.

I then downloaded the 32-bit .NET Framework 2.0. This time the message
was that I cannot install it on a 64-bit operating system.

Any ideas?

Andrew Badera

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Jul 12, 2010, 2:00:39 PM7/12/10

to Hans Malherbe, Fiddler

Running Vista or Windows 7 by any chance? (And 64-bit I'd guess?)

2.0 comes already installed.

∞ Andy Badera
∞ +1 518-641-1280 Google Voice
∞ This email is: [ ] bloggable [x] ask first [ ] private
∞ Google me: http://www.google.com/search?q=andrew%20badera

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EricLaw

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Jul 12, 2010, 3:33:30 PM7/12/10

to Fiddler

If .NET2.0 is installed, the .NET 4.0 CLR shouldn't attempt to load
Fiddler2 because there's no manifest indicating that it's compatible
with .NET4.

I'll ask the .NET4 team.

On Jul 12, 11:00 am, Andrew Badera <and...@badera.us> wrote:
> Running Vista or Windows 7 by any chance? (And 64-bit I'd guess?)
>
> 2.0 comes already installed.
>
> ∞ Andy Badera
> ∞ +1 518-641-1280 Google Voice
> ∞ This email is: [ ] bloggable [x] ask first [ ] private
> ∞ Google me:http://www.google.com/search?q=andrew%20badera
>

> On Mon, Jul 12, 2010 at 1:58 PM, Hans Malherbe <hans.malhe...@gmail.com>wrote:
>
>
>
> > I downloaded the 64-bit .NET Framework 2.0. When I tried to install
> > it, a message displayed telling me that it was already installed.
>
> > I then downloaded the 32-bit .NET Framework 2.0. This time the message
> > was that I cannot install it on a 64-bit operating system.
>
> > Any ideas?
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Fiddler" group.
> > To post to this group, send email to httpf...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > httpfiddler...@googlegroups.com<httpfiddler%2Bunsubscribe@googlegroups.com>
> > .

> > For more options, visit this group at

> >http://groups.google.com/group/httpfiddler?hl=en.- Hide quoted text -
>
> - Show quoted text -

EricLaw

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Jul 12, 2010, 5:03:30 PM7/12/10

to Fiddler

Per the .NET team, the only way this should be happening is if you
have set a custom registry key named OnlyUseLatestCLR.

OnlyUseLatestCLR"=dword:00000001

The nodes to look for the reg key entry are

On 32-bit computers:
[HKEY_LOCAL_COMPUTER\SOFTWARE\Microsoft\.NETFramework]
On 64-bit computers that are running 32-bit applications:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework]
On 64-bit computers that are running 64-bit and 32-bit managed
applications:
[HKEY_LOCAL_COMPUTER\SOFTWARE\Microsoft\.NETFramework]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NET Framework]

Can you check your registry for these keys? If not present, the .NET
team would like to investigate further.

Thanks!

> > >http://groups.google.com/group/httpfiddler?hl=en.-Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -

Hans Malherbe

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Jul 27, 2010, 4:40:33 AM7/27/10

to Fiddler

EricLaw,

You are quite correct, I had set those keys when I had trouble with
Powershell 2 ISE.

I reset them both to 0 and now Fiddler loads successfully.

Thanks a lot!

Groete
Hans Malherbe

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