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Re: eCos Configuration Tool experimental build for Vista


The native Tcl DLL filename is the same as that of the Cygwin Tcl DLL.
In my opinion, the Cygwin Tcl/Tk package should use a different DLL name
such as cygtcl84.dll. I will look into the possibility of at least
warning users about this problem as you suggest. Of course, you can
arrange for the Cygwin /bin directory to be ahead of C:\Tcl\bin in your
PATH when you invoke the eCos Configuration Tool, but it will not be
possible to use an application which requires the ActiveTcl tcl84.dll at
the same time as a tool which requires the Cygwin tcl84.dll.

John Dallaway
eCosCentric Limited

-------- Original Message --------
Subject: RE: eCos Configuration Tool experimental build for Vista
Date: Thu, 4 Sep 2008 05:48:20 -0700
From: Tyler Wilson <>
To: John Dallaway <>
CC: <>
References: <>

The default install folder for ActiceTcl (8.4) is C:\Tcl (likely more
accurately <SystemDrive>:\Tcl. The DLL is named tcl84.dll and is located
under the C:\Tcl\bin folder.

Alternatively, I notice that they also set a TCLHOME environment
variable, which points to the root of the install. Or, in the Registry,
there is an HKEY_CLASSES_ROOT\ActiveTclScript key, which may be scanned
for the install location.


> -----Original Message-----
> From: John Dallaway []
> Sent: Thursday, September 04, 2008 8:24 AM
> To: Tyler Wilson
> Cc:
> Subject: Re: eCos Configuration Tool experimental build for Vista
> Hi Tyler
> Tyler Wilson wrote:
> > Yes, I understand that now. Initially, I was approaching the tool as a
> > Windows user, with certain assumptions.
> >
> > Part of the confusion on my part was that the configtool would give an
> > error when reading the ecos.db file, which gave no clue as to why it
> > might be failing. Perhaps a Tcl version/platform check ought to be done
> > in the application.
> Thanks for the feedback. What is the filename of the ActiveTcl DLL and
> where is it installed by default?
> John Dallaway
> eCosCentric Limited

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