I am having a problem accessing a mapped drive in ColdFusion. I have \\server\files\sharing mapped to z:\. If I run this code, it says the directory exists for the full path but not for the mapped one:

<cfscript>
  fullPath = "\\server\files\sharing\reports";
  mappedPath = "z:\reports";

  WriteOutput("fullPath exists: #DirectoryExists(fullPath)#<br/>"); //YES
  WriteOutput("mappedPath exists: #DirectoryExists(mappedPath)#");  //NO
</cfscript>

I have done some Googling and have found a few people with the same problem, but the solution was always to use the full path. Is there a reason ColdFusion wouldn't be able to see or access the mapped drive? And if so, are there any workarounds (maybe a system call to get the full path of the mapped drive)?