For the last few years I have been adding a non-‘therion’-standard extension to thconfig files, eg thconfig.thc so that I can open them in XTherion directly from the Windows File Explorer.

The first time this is attempted an association needs to be made with ‘Wish Application’, but thereafter it works smoothly, well at least most of the time.

I have described my rudimentary understanding of this here…

http://therion.speleo.sk/wiki/doku.php?id=windows&s[]=modify&s[]=distinguish&s[]=layout

A while back I installed Therion on a Windows 7 machine and got an error similar to the image below.

bad option “utf-8”: must be convertfrom, convertto,names, or system while executing “encoding utf-8” (file “D:\Therion\....thconfig-Flora.thc” line 1)

I assumed it was due to some difference between Windows 7 and Windows XP, upsetting the implementation of the tcl scripts,

however I had the same problem recently with an old Windows XP machine (older that my current 2006 machine).

So perhaps something else is going on.  On a particular machine it will either always work, or never work.

Any ideas how I might overcome the problem on the machines where this technique does not work?

Bruce