Problem with noNameSpaceSchemaLocation

hi everybody,
During validation of my xml file against schema, I could trace out that my
xerces parser is having troubling in finding location of xsd file  while
trying to run on server(which ofcourse, is working fine locally)

Instead, its doing default validation and returning errors
saying.....Element type "abc" must be declared....kind of errors for all the
elements in xml file.

here is my schema location in xml file

<dvaBatch xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	
xsi:noNamespaceSchemaLocation="E:\WebSphere\AppServer\hosts\default_host\Rap
torDev\A\web/xml/RAPInvoiceSchema.xsd">

here is the java code:

org.apache.xerces.parsers.SAXParser parser = new
org.apache.xerces.parsers.SAXParser();
	   	  
try {
	------ ------
	parser.setFeature( "http://xml.org/sax/features/validation", true);
	
parser.setFeature("http://apache.org/xml/features/validation/schema",true);
	parser.parse(filePath);
	----- -----
}//end try

I tried different combinations of schema path including something
like...."http://anatdv5/Raptor/xml/RAPInvoiceSchema.xsd" etc....still no
luck.
Can anyone help me in this regard ??

Thanks,
Srinivas