The Oprintware product O’Print is an excellent Airprint printer server for Windows and is well worth its modest price (under $20 as of this writing.) We have installed it at many locations and it’s reliable and well-liked.
Upon initial installation, it runs in fully-functional trial mode for 30 days after which you must enter an activation key purchased from Oprintware. However, their activation mechanism frequently goes down, sometimes for months at a time.
If you find yourself unable to activate the program because of the activation service being unavailable (usually an error 12029,) you can perform the following procedure to reset the trial period for another 30 days during which their activation machine may be back online.
This is not a “hack” in the sense that you should do this to avoid paying for the product. It is well worth its very modest price and the developer deserves being paid for such an excellent product. But it will get you out of a situation where a needed function isn’t working anymore and you have to get it working again.
- Quit O’Print
- Delete the following registry keys and their sub-values:
HKLM\SOFTWARE\Wow6432Node\OPrint
HKCU\AppEvents\EventLabels\option - Delete the following file if it exists:
C:\Windows\SysWOW64\config\settingenv
Now you can re-open OPrint and the 30-day trial will have been reset.