Upgrading Visual C++ Projects to VS .NET

I am having trouble trying to convert one of my v6 projects to .NET.

I tried the "manual" method, i.e. running VS .NET then opening the old .DSP
file.
This triggers an automatic attempt to convert the project to .NET format.
However, I got an error message, "The operation could not be completed".
I could not find any further information about this error (if anyone knows
how to get further information about this error, please let me know).

So then I thought I'd try the JavaScript conversion utility to see if I
could get any further (or at least get more information about the problem).
This is described in the following MSDN web-page :-

http://msdn.microsoft.com/library/de...nbatchmode.asp

I issued the command as follows :-
CScript convert.js c:\source-dev\cdb\cdb.dsp c:\source-dev\cdb\cdb.vcproj >>
.\Convert.log

This seems to FAIL, it certainly does NOT perform the conversion, nor does
it produce any new files (apart from the LOG file).

The output in the cmd window is :-

convert.js(33,1) (null):0x8005050B

and the Convert.log file is :-

--------------------------------------------------------------------------------------------
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.

Converting: cdb.dsp
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.

Converting: c:\source-dev\cdb\cdb.dsp
--------------------------------------------------------------------------------------------

Anyone got any suggestions?