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Frequently Asked Questions | Re 420


My virus shield says that the installer contains a threat..

TrainworX installers are compressed (packed) during installation to bring the file size down. Several antivirus programs, including Windows Defender (as of January 2019) incorrectly flag these installation files as a virus (normally marking them as TrojanWin32/CryptInject.E). This is because the antivirus cannot ‘unpack’ the installation files, so it just assumes they are a threat.

It is important to understand that there are no executable files in a Train Simulator add-on. All it contains is the data for the train or wagon (textures, geometry and the simulation files), so there is nothing in the installation that could be considered malicious. It is purely the antivirus software’s inability to unpack the file that causes these messages.

All TrainworX installers are clean. All add-ons are checked by VirusTotal against 60 or more different antivirus engines.

At this time there is no permanent solution to the issue. All installers have been sent to the different antivirus companies, including Microsoft, in an attempt to get them on to the ‘white list’ but TrainworX has no control over the time it will take for this to happen (if it ever happens).

For the time being, the only workaround is to temporarily disable your antivirus software during installation (and possibly also during download) if you see the Trojan false positive message.

How do I uninstall TwX add-ons?

NOTE! We have found serious issues with some versions of uninstaller programs. They will delete ALL ASSETS and not only the CwX or TwX folders. Please DO NOT use the uninstall programs of the following add-ons:

  • Re 620
  • Re 420
  • GPR

To uninstall any TwX add-on WITHOUT using the included uninstallers please do the following:

  1. Navigate to your Railworks Assets folder (Typically C:\Program Files (x86)\Steam\steamapps\common\RailWorks\Assets)
  2. For the RABe 511 navigate to /TrainworX and delete the folder: TwX_Rabe511. For all other add-ons navigate to /CreativeworX.
  3. Remove the folder of the add-on you wish to uninstall:

Re 420 pack and Re 420 172 : CwX_RE420

Re 421 pack : CwX_RE421

Re 620 pack : CwX_RE620

Re 460 pack AND IC2000 : CwX_RE460

All freight wagons : CwX_SBBFreight

IMPORTANT! Please ALWAYS make a backup of your Railworks environment BEFORE uninstalling or deleting anything. Especially the /Assets and /Content folders should be backed up. 

Swapping rolling stock in existing scenarios

If you need to replace an engine or wagons in an existing scenario you can do that in two ways:


  1. Use the Railworks Scenario Editor. Please view a tutorial HERE.

2. Use RW_Tools. You can download RW_Tools HERE. A tutorial about this procedure can be seen HERE.


Run TS and install TwX addons on a Linux PC

If you ‘d like to run TS with our trains on a Linux Steam setup please try the following*:

  • Add the Railworks Windows Registry keys:HKEY_LOCAL_MACHINE > Software > Wow6432Node > RailSimulator.com > RailWorks :
    “(Default)” | “REG_SZ” | blank / value not set
    “exe_path” | “REG_SZ” | full Windows style addres to the executable – eg: “C:\Steam\steamapps\common\RailWorks\RailWorks.exe”
    “install_path” | “REG_SZ” | full Windows style addres to the folder containing the executable – eg “C:\Steam\steamapps\common\RailWorks”

Using WINEPREFIX of the Proton running Train Sim (24010), run the TwX installer like on Windows…
WINEPREFIX *should* be located at: steamapps/compatdata/42010/pfx

  • No guarantees that this solution will work in your case but one of our customers was successfully installed TS and our addons this way.


5 important things you need to know when installing a TwX product

We have created a document that answers some frequently asked questions about the installation process.

Please read this document if you have any issues during installation or want to delete TwX software.

NOTE: The link to the registry tool has changed. Please use this one: WINDOWS REGISTRY TOOL



Reverser is stuck in ‘forward’ position at startup..

If you experience problems with the controls check if your Driving Controls are set to: ‘Expert Mode’.

All TwX add-ons need Expert Mode Controls to properly function.

The installer does not work. It does not recognize my Trainsimulator folder..

If you get the message: “RailWorks does not seem to be installed.Please install Railworks first and try again or run the Railworks registry tool…”, chances are that you have an a-typical TS installation where Windows did not correctly update your registry or, for instance, you moved your Railworks folder after initial installation.

To fix this, run a registry fixer (RegDetectandFix). Try to run the installer again after this.

My train doesn’t move!

If you have troubles to get moving please refer to the manual before raising a helpdesk ticket.

TwX trains have a high reality factor. Therefore it might be needed to perform some operations (sometimes in a specific order) to get things ready for operation. These operations are mentioned in the manual and ‘how to’ videos.

Links to the manuals and videos can be found on the product pages.


The regulator acts weird..

On the Re 420 (and 620) the power is controlled by a ‘Stufenschalter’ (Stepswitch). This means that when you move the regulator forward, the Stufenschalter will switch up to higher power up to a certain level. So holding the switch in position + or ++ will ramp the power up to maximum. Try moving the switch back to ‘0’ (Zero) after 4 or 5 steps (you can easily hear them) or look at the amps go to 400 or so. The engine will still accelerate because the power is set at that step.

‘M’ switches one-by-one and you have more fine control using that one. + and ++ must only be used when you really need a lot of power to accelerate a heavy train.

How does the ZUB system work?

If you get stuck on using ZUB, please read this article:

ZUB 121

This will explain a bit more about how the system works on TwX trains. If you don’t switch on ZUB your train will normally default to the standard AWS.