Must be an install issue.
Is the client running as admin or a user?   I would try a re-install or 
the fix Mike Irwin posted.

On 1/31/2018 6:43 AM, Roger Phil wrote:
> Steven thids is Bertil's bug
> http://hem.bredband.net/bertilisberg/paradox/errdocs1/eid121.htm
> 
> I only have this error on one of computer of one client.
> 
> 
> Steven Green wrote:
>> I recognize that error message, but I'm not getting a match here or in
>> the bug list
>>
>>
>> -- 
>>
>> Steven Green
>> Myrtle Beach, South Carolina, USA
>>
>> http://www.OasisTradingPost.com
>>
>> Collectibles and Memorabilia
>> Vintage Lego Sets and Parts
>> - and Paradox support, too
>> "Roger Phil"  wrote in message news:5a6ba7db@pnews.thedbcommunity.com...
>>
>> Hoping someone can give some ideas to try on this.
>>
>> Program is running on P10 runtime but one client has a problem printing
>> from opal or from the File print menu same error "Lcappprint initialize
>> failed". More odd because if they print a report containing just text it
>> prints fine. Any reports with data fail.
>>
>> There are some mentions of this error on Bertil's bug list but most seem
>> to be caused by not installing in Admin, not the case in this install.
>>
>> This client has the software runnng on another PC without any problem so
>> I can only assume it maybe something on this particular PC that causing
>> it as the installs are identical on both.
>>
>> Any suggestions please.
>>
>>
> 
>