java -jar c:\saxon6_5_5\saxon.jar -o exout.xml ex.xml ex.xsl xyz=27
msxsl                             -o exout.xml ex.xml ex.xsl xyz=27

<xsl:stylesheet>
<xsl:param name="xyz" />

• Both Saxon and MSXSL allow you to add parameters to the command line
• Parameter acts like a variable in XSLT, see later