At a command line, type:
subst n: m:\some\path
Remember you need to use the correct version of subst on 64-bit systems depending on the executable you are launching. If you are launching a 32-bit application on a 64-bit platform use:
If you are launching a 64-bit application on a 64-bit platform (or 32-bit application on a 32-bit system) use:
All the usual caveats apply if you use subst on a network drive. You will need to map the network drive first and then subst it.
In order to run an application off a subst drive you need to create a Pre-Service. To do this, start the FireDaemon GUI, create a new service (Ctrl+N) then click on the Pre / Post-Service tab.
Click the Insert button in the Pre-Service Programs section. You would then enter:
Executable: C:\Windows\system32\subst.exe Working Directory: C:\Windows\System32 Parameters: n: m:\some\path Execution Time: 3000 Run Program: Before Event
Change the parameters line to reflect you desired drive letter and path to subst.
Then click this Insert button in the Post-Service Programs section. You would then enter:
Executable: C:\Windows\system32\subst.exe Working Directory: C:\Windows\System32 Parameters: n: /d Execution Time: 3000 Run Program: After Event
This will cause the drive to be mapped prior to running the executable and the mapping removed when the service is stopped.