I have a source XML document (primary) and a secondary (virtual) XML
   document that contains only links (xlinks) to the primary document. I
   would like to know if it possible to use a XSLT document to produce a
   standalone XML document (kind of compilation) that would resolve the
   whole links from my virtual XML document.



yes if the links were in xhtml syntax (just to make it simple)
<a href="fooo"/>
then you just want a template that expands that

<xsl:template match="a[@href]">
 <xsl:apply-templates select="document(@href)"/>
</xsl:template>

David


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