put (txt, utf8, embedded labels, delimiter is '\t', msq) into a variable keeping ' around \t
the following works :
SET vTxtOptions = (txt, utf8, embedded labels, delimiter is ',', msq);
While working on that I was checking the content of the variable via a textbox and withing this it wasn't displayed correctly. When checking the variable list in the client teh string was correctly set and is also working withing the script.