HDR Compile Error: Access Is Denied (Hammer)

[Turnovus]

I'm trying to compile the HDR for my map so that lighting looks right, but whenever I compile the map I get the following error:

** Executing...
** Command: HDR Full compile -final
** Parameters: "C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\bin\vrad.exe"

* Could not execute the command:
   HDR Full compile -final "C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\bin\vrad.exe"
* Windows gave the error message:
   "Access is denied."

I've tried setting Hammer and vrad to run in administrator, and have confirmed that vrad.exe is not read-only, but I still get the same error. What should I do?

[The_HAVOK]

are you using hammers f9 or a batch file?

[Turnovus]

The former, I'm exporting my map from Hammer.

[Rubat]

Your settings appear wrong.

Command should have the path to VRAD and Parameters should have -final like so:
** Executing...
** Command: "<redacted>\bin\vrad.exe"
** Parameters:  -game "<redacted>\garrysmod" "<redacted>\Mapping\gm_shitsticks\gm_shitsticks"

[Turnovus]

So my settings were wrong, as I got the "HDR Full compile" bit from the Valve Developer Wiki, but I mistook the compile preset for an option. Thank you for your help, and sorry for wasting your time on such a foolish mistake.