Finding physical paths to files and folders in ASP - Server.MapPath

When working with files and folders on the server it is important to be able to find the physical path. The Server.MapPath command will do this. It converts a relative path to a physical path.

Finding the path to a file

Server.MapPath is easy to use to find the physical path of a file that is in the same folder as the script. It just takes that file name as a parameter. In our examples we are using Response.Write to display the paths but they could be used in another function or written to a variable for later use.

Response.Write Server.MapPath("filename")

filename would be the name and extension of the file, such as "somename.asp"

Finding the current folder/directory

The following code will display the physical path to the folder containing the script that runs the code. It does not include a trailing backslash character.

Response.Write Server.MapPath(".")

Finding the root path

The following code will display the physical path to the root of the web site.

Response.Write Server.MapPath("/")

Finding the parent directory

Parent paths can be found using two dots (..) to navigate upwards in the directory structure.

Response.Write Server.MapPath("../filename.asp")

It is possible to block the use of parent paths in IIS if a server administrator does not want their users to have this functionality. More on this - here.


The sample code in these tutorials is written for VBScript in classic ASP unless otherwise stated. The code samples can be freely copied.