Hello Xavier,
thanks for the answer, but it didn't solve the problem.

I "copy-pasted" the string
%[id].%t and changed "id" to "sid", then put it into the box 
Set Options - Build - Options - User-defined-structure

Then downloading the file 
<http://www.xyz-server.de/cgi-bin/sinfo.pl?sid=QRYAZIZFICPGFEAI>

resulted in the file sinfo9de6.html

that's the problem, every time the "sid" changes, the 
resulting filename changes, too.

Maybe I am to stupid to read correctly and I make a mistake, 
but in the moment I'm really blind and don't know where to 
look for the mistake.


Do you have a solution, or is it maybe a problem with my pc.


Greets,

Randolf