This examples demonstrate different ways of accessing the same xml file in temp directory:
'c:/inetpub/wwwroot/app/temp/Chart.xml' when the applications is located in ...wwwroot/app.
when started with '/' the folder resets to c:/inetpub/wwwroot/.
This property takes either a raw xml string or an xml file name.
For an xml file name it takes either an absolute path 'c:/inetpub/wwwroot/app/chart.xml',
a physical UNC path ('\\myUncPath\cahrt.xml'), a relative path ('temp/chart.xml',)
or when started with '/' a relative path from c:/inetpub/wwwroot/ ('/app/chart.xml),
or only a file name 'chart.xml' in the temp directory.