Just wanted to report that I was able to get AC Dual Client and Decal running on a 64-bit machine after experiencing a lot of the problems that people were having.

The error message I was receiving was the "Can't load multiple clients" message from the acclient executable.

After you've tried everything else, meaning after you've installed .Net 1.0, 1.1, 2.5, 3.0 and every other variation as well as msxml and the other required tools, do a full uninstall of decal, asheron's call and dual client. Once this is done, you HAVE to clean your registry of anything related to asheron's call.

If you initially installed your game in the program files (x86) directory, it will hold that directory information through a standard uninstall and it causes something with AC to freak out. I'm not 100% sure the problem is linked directly to that but I am sure that the problem I had was resolved after clearing my registry of anything related to asheron's call and then reinstalling. (Another thing that might be problematic is if it isn't installed on your OS partition. Mine wasn't and on the final install that I got it working, I had everything installed on the OS partition.)

- Dual Client, Decal and Asheron's call are all running under my current user and are not running as administrator, so any requirements between them to be running in different variations are not necessary.
- I had on previous attempts to resolve the problem, uninstalled everything and installed to standard directories (C:\Games\) but it did not resolve the problem, leading me to believe the problem lies directly with the registry items.


I didn't run into any of these problems on my windows xp or vista machines, but on the vista machine I didn't do my initial install in the x86 directory like I did my win7 machine.

If you've managed to install AC or Decal into the default location and don't necessarily wish to do all of the above and you are comfortable on the command line, all is not lost.


It is possible to move the AC and Decal folders from the \Program Files{x86) directory and still have it work without having to mess with the registry.


Beginning with Windows Vista and extending through Windows 7, Microsoft has added the mklink command to the standard install. For those of you familiar with Linux, mklink is very much like the linux/unix ln command in function.


What you can do is you can move the Asheron's Call and Decal directories to somewhere like c:\Games\ and then use the mklink command to create a link in the \Program Files(x86) directory so the registry will be happy. Since the files aren't physically part of the \Program Files or \Windows protected directory structure, the Windows OS bits which keep changes from happening to system files won't bother you. I have done this for at least once instance and had it work.


As an example, if you had moved the "Turbine" directory (and all subdirectories) from c:\Program Files (x86) to c:\Games, the mklink command you would use would be mklink /d "C:\Program Files (x86)\Turbine" C:\Games\Turbine {the double quotes are necessary to tell the OS that the space in "Program Files" is okay and not another argument}. You need to run the command prompt as an administrator (which you can see how to do at http://www.howtogeek.com/howto/windows-vista/run-a-command-as-administrator-from-the-windows-vista-run-box/ )


You would do the same thing for the Decal directory.