Here's what I did to get this to work under windows 8 64bit

open the start menu, search for CMD, right click cmd.exe and choose run as administrator.
Then type in the following commands:
regsvr32 "C:\GOG Games\Arcanum\arceditor1_8\mscomct2.ocx"
regsvr32 "C:\GOG Games\Arcanum\arceditor1_8\richtx32.ocx"
regsvr32 "C:\GOG Games\Arcanum\arceditor1_8\comdlg32.ocx"

if your arceditor folder is in another location you can just move it to the arcanum folder.

After manually registering those 3 .ocx files it started up fine.

Thanks. I am going to use this next time I play :)

Can i get a step by step to download and use the editor

I screwed around with this editor for a good 2 hours.

This is the only thing that worked. After reading this post, i realised that I wasn't running a command prompt in administrator mode.

Make sure you don't just Windows + R and type cmd, you need to right click and run it as administrator :D

Thanks a lot JamesMason! :D

thanks James, for me i also had to do

regsver32 "C:\GOG Games\Arcanum\arceditor1_8\msstdfmt.dll"
all of them ran successfully with this fix. it now runs smoothly.

thanks, worked for me too. I'd been using this editor since Ye Olden Days, and never got it to work on win10.

i did find it easier to copy all that in a batch file though. that makes it easier to edit the directory and run it as admin.

Thanks for setting me on the right track. The file paths have changed now so this is for anybody else who wants to get the editor up and running these days

regsvr32 "C:\Program Files (x86)\GOG Galaxy\Games\Arcanum\arceditor1_8\COMDLG32.OCX"

regsvr32 "C:\Program Files (x86)\GOG Galaxy\Games\Arcanum\arceditor1_8\MSCOMCT2.OCX"

regsvr32 "C:\Program Files (x86)\GOG Galaxy\Games\Arcanum\arceditor1_8\MSSTDFMT.DLL"

regsvr32 "C:\Program Files (x86)\GOG Galaxy\Games\Arcanum\arceditor1_8\RICHED32.DLL"

regsvr32 "C:\Program Files (x86)\GOG Galaxy\Games\Arcanum\arceditor1_8\RICHTX32.OCX"

make sure the folder containing your arceditor is named arcedit1_8 and is in your Arcanum directory. Then it's just a simple matter of copying these lines and pasting them into the CMD window with ctrl+v and hitting enter. You may get one error but don't worry it should work, just copy and paste them all

I used the installer from https://www.gog.com/forum/arcanum_of_steamworks_and_magick_obscura/arcanum_saved_game_editor_18_on_windows_8_fix.

And it does not seem to install anything. I searched the whole drive for "arceditor" and "comdlg32.ocx". No results.

Please, can someone provide the tool in a zip file?

For me it worked without capitalized letters for all files (riched32.ocx still showed error but it didn't matter and I was able to launch editor. Im on windows 10 64bit.

Example: regsvr32 "C:\Program Files (x86)\GOG Galaxy\Games\Arcanum\arceditor1_8\msstdfmt.dll"