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Subject: Re: sigTOOL help
Date: Mon, 23 Feb 2009 15:34:02 +0000 (UTC)
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Dear Lee

This error will be generated if mexprog.dll has been compiled on more recent versions of MATLAB. My guess is that you have a more recent dll that was includes in early sigTOOL versions and this has not been overwritten when unzipping. In any case, the one in the current sigTOOL download (Version 0.88) is dated 02/06/2004 and, in my hands, works on R2007b. 

I will send you a mexprog.mexw32 that works back to R2006a by email. This will be needed shortly as support for the dll extension is disappearing from MATLAB.

Incidentally, MATLAB advises against placing files in the toolbox path. sigTOOL will work there, but you may hit problems and could degrade overall MATLAB performance. It might be better to use My Documents/sigTOOL.

Regards
Malcolm