var myVBScript = "Set myInDesign = CreateObject(\"InDesign.Application.CS3\")\r";  
myVBScript += "Set fso = CreateObject(\"Scripting.FileSystemObject\")\r"; 
myVBScript += "Set AlleLaufwerke = fso.Drives\r"; 
//---------------------------------------------------- 
//Hier muss der Laufwerksbuchstabe angegeben werden (im Beispiel hier X 
myVBScript += "driveletter = \"X\"\r"; 
//----------------------------------------------------- 
myVBScript += "sharename = \"\"\r"; 
myVBScript += "For Each Laufw In AlleLaufwerke\r"; 
myVBScript += "If Laufw.driveletter = driveletter Then\r"; 
myVBScript += "sharename = Laufw.sharename\r"; 
myVBScript += "End If\r"; 
myVBScript += "Next\r"; 
myVBScript += "myInDesign.ScriptArgs.SetValue \"scriptArgumentShareName\", sharename\r";  
myVBScript += "\r";  
 
app.doScript(myVBScript, ScriptLanguage.VISUAL_BASIC);  
var shareName = app.scriptArgs.getValue("scriptArgumentShareName");  
alert("Sharename: "+shareName);