OpenVPN Upgrade Failure with Error 1603

KP

We are unable to upgrade OpenVPN from:

openvpn-install-2.4.6-I602.exe

OpenVPN-2.7.2-I001-amd64.msi

The upgrade fails with Error 1603 during installation.

As per available vendor information, OpenVPN 2.4.6-I602 for Windows was released only as an NSIS-based .exe installer, and we could not find any standalone .msi package for this version.

Could you please confirm whether OpenVPN 2.4.6-I602 is available in .msi format? If yes, kindly share the download link or support details. If not, please advise the recommended upgrade or migration path from the older .exe-based installation to the newer MSI-based installer versions.

JosephS

Hi,

Here you can find and download all pervious versions of the Community GUI client.
https://build.openvpn.net/downloads/releases/?C=M&O=D
Note: It is usually not advised to keep using severely outdated software such as the OpenVPN GUI 2.4.6, since after all, it is an 8 year old software with severely outdated OpenSSL versions and other security vulnerabilities that have been patched over the years.

Regarding the installation Error 1603, often times it could be DCO/TAP driver related, I would check if there is nothing messing with the installation of the drivers on your machine.

Cheers,
JosephS