Installing two - similar MT4 platforms on one PC

Thanks All,


It is working at last!!


Went the 'Bill Gates' way.


Uninstalled and re-installed the entire MT4 & associated works including dll libraries etc.


Thanks for your inputs.



Rgds & wish you ever greener pips....

can you still just copy the folder?

I'm asking because the latest builds of MT4 use folders in %APPDATA% to store the data, so I wonder if the original and copied instances of MT4 would just use the same folder there and write all over each other's data, messing everything up.

latest meaning I think build 600

Fortunately there is easy way to check it. After running the copy, using menu File->Open Data Folder leads to a new data folder, with correct path in the origin.txt file.

well it seems to work, although I the copied terminal appeared hung until I closed the first instance and then the 2nd instance loaded and said something about the "new update". Maybe it was just coincidence, and it was just taking its sweet time to load.

But what I meant more was, because of this new architectural change, are there any problems that will pop up? I do like the convenience of just drag and dropping the folder instead of installing mt4 in different folders many times.

I believe it is safe, as they still describe the application with portable deployment option, on the USB stick. Besides, I have no idea of how it synchronizes the remote data folder with the portable local folder, if the portable option changes with the next launch.

ah. interesting there is /portable switch

http://forum.mql4.com/60559

Hopefully this will help:

https://www.finfx.fi/en/installing-t...s-one-computer

WARNING: Proceed at you own risk!

Before proceeding create a restore point or perform a complete hard drive backup.
I run two instances of MetaTrader 4 on one computer using one hard drive.

Windows 10:
Go to C:\Program Files\(x86)>MetaTrader 4.
Select folder, the Ctrl+C (copy) and Ctrl+V (paste).
Rename new folder, e.g.; MetaTrader 4 (2) or MetaTrader 4-2.
Double click folder, right click terminal.exe, I renamed it terminal-2 (to be on the safer side)
Right-click on terminal-2.exe create desktop shortcut and drag it to toolbar for easy launching.
MetaTrader creates a new folder in Roaming\MetaQuotes\Terminal.
Good to know and remember which folder is MetaTrader 4 and MetaTrader 4 (2).
They aren't named MetaTrader 4 and MetaTrader 4 (2), instead they are a long string of numbers and letters
Those folders contain; indicators, EAs, history, templates, profiles, etc.

I run both MetaTrader 4 and MetaTrader 4 (2) at the same time using the same demo account or each at the same time using a different demo account either/or works. Don't have a real account hopefully it'll work.

It hasn't created any problems so far.

Basically followed instructions from see link below. Then scroll page-down to "The faster and easier way to install multiple MT4 terminals".

https://www.ea-coder.com/how-do-you-...mputer-or-vps/

Hope that helps someone!

FF won't let me edit or add to the above post.

Additionally, I made shortcuts to the folders leading to Roaming\MetaQuotes\Terminal.
When copying contents of the original folder in Roaming\MetaQuotes\Terminal to the other folder make sure to not overwrite the "origin.txt" file in the destination folder.
That file apparently contains a 'pointer' to its pertaining MetaTrader instance.
The inside of that text file looks something like this: C:\Program Files (x86)\MetaTrader 4 (2).