I am getting the following error in the log file:
Action start 12:11:52: CreateIisConfigs.
MSI (s) (0C:7C) [12:11:52:731]: Invoking remote custom action. DLL: C:\WINDOWS\Installer\MSIFD80.tmp, Entrypoint: CreateIisConfigs
MSI (s) (0C:E8) [12:11:52:731]: Generating random cookie.
MSI (s) (0C:E8) [12:11:52:733]: Created Custom Action Server with PID 10316 (0x284C).
MSI (s) (0C:F0) [12:11:52:751]: Running as a service.
MSI (s) (0C:F0) [12:11:52:753]: Hello, I'm your 32bit Impersonated custom action server.
SFXCA: Extracting custom action to temporary directory: C:\WINDOWS\Installer\MSIFD80.tmp-\
SFXCA: Failed to extract to temporary directory. Cabinet error code 1.
CustomAction CreateIisConfigs returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
Action ended 12:11:52: CreateIisConfigs. Return value 3.
Action ended 12:11:52: INSTALL. Return value 3.
I am using <MediaTemplate EmbedCab="yes" /> and WIX Toolset 3.10.
Thanks for your time.