hi, I'm using saxonB in a .NET application. I'd like to know if it is possible to pre-compile my style sheets and then serialize them on file. I noticed that the transform.exe utility that comes with saxonb allows to use compiled style sheets, but how to build these files? I tried to serialize the XsltTransformer object with a BinaryFormatter, but unfortunately the Controller object is not Serializable. Otherwise, any suggestion to speed up compilation? I simply use Compile(). Thank you. massi