"The SigCaptX service could not be started" on installing SigCaptX

When installing SigCaptX on Windows 7 you may receive an error message saying that the SigCaptX service could not be started.

There are two known causes of this error as below.

1. We applied a stricter digital signing method to Wacom executables and DLLs which often causes problems on Windows 7.

This additional protection was applied to prevent the possibility of files being modified.

The error message will not be reported if Windows has been fully updated using Windows Update. If it is not possible to apply the full Windows Update, this specific update will usually resolve the issue: KB 3153171

The update can be downloaded from Microsoft.com:
 

• KB 3153171 - 32-bit

• KB 3153171 - 64-bit

2. The SigCaptX service uses port 8000 by default. It could be that it is failing because another process is using that port (or maybe it is being blocked by your anti-virus or firewall).

You can use "netstat -a" to find out whether there is another process using the port. You can change the port number used by SigCaptX as described in the SigCaptX User Guide.

Please note that if you change the default port number in the registry you will also need to change the port number used in your Javascript code.
Below shows how the port number is used in our sample code:

  wgssSignatureSDK = new WacomGSS_SignatureSDK(onDetectRunning, 8000);         

N.B.

Please note that we no longer officially support our products on Windows 7 because Microsoft have stopped supporting it.  Therefore if you are experiencing difficulties on Windows 7 we would advise you to upgrade to at least Windows 10.