For those who are having trouble with a problem with Check for updates here are the direct links to the downloads:

AP V2 driver 5.30.09:
https://www.gralak.com/apdriver/AstroPhysics_V2_Setup_5.30.09.exe

APCC Standard 1.8.0.8:
https://www.apastrosoftware.com/apcc_download/APCC_Standard_Setup_1.8.0.8.exe

APCC Pro 1.8.0.9:
https://www.apastrosoftware.com/apcc_download/APCC_Pro_Setup_1.8.0.9.exe

APCC Standard PDF:
https://www.apastrosoftware.com/apcc_download/apcc-std.pdf

APCC Pro PDF:
https://www.apastrosoftware.com/apcc_download/apcc-pro.pdf

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver