After downloading your new 2.3 version please check the MD5 sum. If you don’t get the correct Fastsum MD5 value….don’t proceed ! If you do…you will get stuck!
How to check the MD5 checksum? Read this page.
When that’s done, start setup.exe, closely observe the screens that are passing your eyes. Select your installation folder from previous P3D22 and go!
W8.1:: If Windows Explorer (Windows 8.x) is blocking any action, select “More info” and proceed.
If you have chosen the correct installation path, the files are overwritten and no other installation of the add-ons is required.
CRASHES caused by earlier versions of FSUIPC4 which are not compatible with P3D23:
If you experience any crashes, first disable FSUIPC4 with a dollar sign (rename his file into $FSUIPC4.dll) and restart the sim. It should run now without any error.
Download Version 4.936 as from Aug 18th, 2014