Various ways to troubleshoot and identify root cause of a problem.

Clean C-Pen Core user/settings files (Windows)
If C-Pen Core fails to start properly, it may be solved by erasing C-Pen Core settings files. Make sure C-Pen Core is NOT running.  Open File Manager ...
Thu, 20 May, 2021 at 11:21 AM
C-Pen Core crashes | unexpected error | object reference not set to an instance of an object
If C-Pen software crashes due to "Unexpected error" or "Object reference not set to an instance of an object" it most likely depend on l...
Mon, 4 Sep, 2017 at 4:04 PM
Can't load dll
Relates to C-Pen Core 3.2.5 and later Requires
Mon, 22 Feb, 2021 at 4:05 PM
When installing C-Pen Core I am told that .Net 3.5 is required. What is .Net?
The Microsoft .NET Framework is a software framework that can be installed on computers running Microsoft Windows operating systems. Many programs are wr...
Sat, 21 Mar, 2015 at 9:38 PM
Enable Microsoft Installer logging & Verbose logging in Windows XP | 7 | 8
Windows 7 | 8: To enable and collect the Windows 7/8 Installer logs, download Microsoft Fix it 20095 and run it. This Fix it is for Windows 8 and Windows...
Mon, 1 Dec, 2014 at 2:10 PM
App can’t be opened because Apple can’t check it for malicious software
Does MAC OSX refuse installation? You get error message "[App] cannot be opened because apple cannot check it for malicious software".  This sof...
Mon, 22 Feb, 2021 at 4:12 PM
Troubleshoot TS1 (Windows)
If TS1 seems to connect properly to the computer (as seen in Device Manager) but still doesn’t connect to C-PEN Core app – please check Camera Privacy ...
Tue, 23 Feb, 2021 at 8:08 AM
Make a clean re-install of C-Pen Core
Windows Unplug/disconnect the C-Pen. Uninstall C-Pen Core (Windows standard routines). Manually remove program files. Go to C-Pen Core install location...
Thu, 20 May, 2021 at 11:28 AM
How to check connected USB devices in MAC OSX
Please check this article: how to check USB connected devices in MAC OSX
Fri, 21 May, 2021 at 7:54 AM
Text input doesn't work (MAC)
Mostly this depends on that the C-Pen is not activated as Input Method. Check the user guide paragraph 2 how to do this. If this is not the case it may...
Fri, 16 Sep, 2016 at 1:48 PM