Has anbody an idea where I can find some documentations to write my one *.xsl for changing the style of WMS rsponse?
is XSL a special ESRI-Format or is it a general scripting language?
I can not find documentations except some small pages in the Ersi Resouce Center
I'll be happy about a promt answer.
Kind regards,
Nicole Zöllner
alta4 AG, Trier
http://www.alta4.com 
I'm not sure about this particular usage, but XSL is the XML Stylesheet Language, which is written in XML and used to process / transform XML. See more about it here: XSL Languages
Now how ESRI is using XSL in this particular case, I do not know. Is this "WMS response" you mentioned using XML? If so, then you might be able to just use XSL (XSLT or XSL-FO) to manipulate the XML response in whatever way you wish. Otherwise, it might be something else entirely.
Hope that helps some. ![]()
I've moved your post into the  Enterprise GIS space.  You will get a much better answer here as the GeoNet Help is intended for community help and feedback. I have also added in a few additional tags. You can see more
on the community structure, and what topics are under each space from the following documents:
ArcGIS Discussion Forums Migration Strategy
Thanks!
Don