Error 1720 when installing Onyx 4.0.1010



Error 1720 when installing on Windows 10 build 1809. (fresh installed windows 10)
Windows is up-to-date.

PreInstall installs correctly

installer stops when loading default show file.


can someone help me?


Full error message from EventViewer

Product: Onyx – Error 1720.There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor. Custom action LoadDefaultShowFile script error -2146827859, Microsoft VBScript runtime error: ActiveX component can’t create object: ‘ShowLogic.ShowManagement’ Line 41, Column 3,


Disable HP Hotkey UWP Service + restart COM+ Event System.


Hey @robin.pestman!

You’ll find the resources and fixes for that here.

//Martin Hedström


Check this reply:


Ok i’m going to have a winge here. The ONYX installer the way I see it is broken. I have run the installer on three different machines that have never had Martin M-PC or ONYX installed. That is clean machines each one failed when attempting to access the localdb with error 1722 request to sql server timed out.

The fact this happens on three clean machine concerns me, as the M-PC installers always worked fine.

In my opinion the installer is broken and Elation need to fix it!.


Can you try to install the last release version of M-PC on one of these?


Same here although I’m getting Error 1720 as well as Error 27502… need a hand here. I myself cant return to last version, old version was on older laptop that motherboard fried.


Sorry the Disable HP Hotkey UWP Service + Restart Com + Event System is a no go .

Does not work.


hello Bar,

i guess i still have v3.44.604.0 setup files for M-pc i you need it


What system do you use?


Hi Kristiensen… I happened to follow the instructions and did a complete clean in order to upgrade to Onyx for the latest fixture files.Unfortunate for me it did just that M-PC cant be reloaded,
have an error there and Onyx still won’t Load.
My computer is an HP and so far from what i gather it works directly on Dell and Lenovo. hopefully i can find the fix soon.


Hello Robin…Ive replied directly, but just in case this is my operating system ;
System Model HP ZBook 17 G3
System Type x64-based PC
Processor Intel® Core™ i7-6700HQ CPU @ 2.60GHz, 2592 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date HP N81 Ver. 01.33, 2018-07-17
SMBIOS Version 2.7
OS Name Microsoft Windows 10 Pro
Version 10.0.17134 Build 17134

does this help ?