<Object>
	<Number_Register>
		<CadastralNumber>xx:xx:xx xx xxx:xxxx</CadastralNumber>
		<Prev_CadastralNumber/>
		<Next_CadastralNumber/>
	</Number_Register>
	<Areas>
		<Area>
			<AreaCode> 070006000000 </AreaCode>
			<Area> 29 </Area>
			<Unit> 012002004000 </Unit>
		</Area>
	</Areas>
	<GroundCategory> 003002000000 </GroundCategory>
	<Address>
		<Address_text>Российская Федерация, Нью-Йоркская область, г. Нью-Йорк, ул. Им. Дж. Буша мл., д.  12 , кв.  5 </Address_text>
	</Address>
	<Rights>
		<Encumbrance>
			<Name>аренда</Name>
			<Type> 001002003000 </Type>
			<Registration>
				<RegNumber>xx-xx.xx-x.x.xxxx-xxx</RegNumber>
				<RegDate> 14 . 04 . 2000 </RegDate>
				<DateClose> 19 . 03 . 2008 </DateClose>
			</Registration>
		</Encumbrance>
		<Encumbrance>
			<Name>аренда</Name>
			<Type> 001002003000 </Type>
			<Registration>
				<RegNumber>xx-xx-xx/xxx/xxxx-xxx</RegNumber>
				<RegDate> 19 . 03 . 2008 </RegDate>
			</Registration>
			<Term>
				<Started> 25 . 12 . 2007 </Started>
				<Stopped> 24 . 12 . 2056 </Stopped>
			</Term>
		</Encumbrance>
	</Rights>
</Object>

	<xsl:template name="GetCodeValue">
		<xsl:param name="CodeVal" />
		<xsl:param name="PathToDoc" />
		<xsl:variable name="Doc" select="document($PathToDoc)//xs:enumeration" />
		
		<xsl:for-each select="$Doc">
			<xsl:if test="@value=$CodeVal">
				<xsl:value-of select="xs:annotation/xs:documentation" />
			</xsl:if>
		</xsl:for-each>
	</xsl:template>

<xsl:param name="BasePath" />

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xsl:output method="xml" version="1.0" encoding="windows-1251" indent="yes"/>
    <xsl:param name="BasePath"/>
    .......
    <xsl:template name="GetCodeValue">
        <xsl:param name="CodeVal"/>
        <xsl:param name="PathToDoc"/>
        <xsl:variable name="Doc" select="document(concat($BasePath, $PathToDoc))//xs:enumeration"/>

        <xsl:for-each select="$Doc">
            <xsl:if test="@value=$CodeVal">
                <xsl:value-of select="xs:annotation/xs:documentation"/>
            </xsl:if>
        </xsl:for-each>
    </xsl:template>

 // разрешение функции document()
 XsltSettings settings = new XsltSettings(true, true);
 XmlReaderSettings s = new XmlReaderSettings();

 // вот вот здесь устанавливается параметр BasePath
 XsltArgumentList arg = new XsltArgumentList();
 string[] pathToXslt = _PathToPackageStylesheet.Split(@"\".ToCharArray());
 arg.AddParam("BasePath", 
		     string.Empty,
		     string.Join(@"\\", pathToXslt,  0 , pathToXslt.Length -  1 ) + @"\\");

// собственно само преобразование документа
 XmlTextReader readerXslt = new XmlTextReader((Stream)File.OpenRead(_PathToPackageStylesheet));
 _XmlParcelStyleSheet.Load(readerXslt, settings, null);			
 _XmlParcelStyleSheet.Transform(XmlDoc, arg, StreamOut);