Pass a null string to stand-alone exe?

Hello,

I compiles a function as exe, but don't know how to pass the arguments. They are all supposed to be strings like file paths or names, but some could be "blank", and inside the function that should somehow be detectable:

function smoothExtBLRexcel (rosefile,rosesheet, filenameEnvelope,envelopeSheetname)

if ~strcmp(filenameEnvelope,'')
... do stuff

I thought to invoke the exe as:

smoothExtBLRexcel rose\BLR_Results_inclSF.xlsx Loads '' Loads

It seems to not detect the 3rd arg as a empty string.

Anything fancy needed?

Thanks a lot.

[David Pesetsky]

Late breaking news... using double quotes instead of single quotes does the trick. I'll leave the question open a bit longer anyway....