Take a look at mskb#Q253884

>Hello,
>
>I had a customer who got hit by a virus recently and now when they try to print to the network printers from my application they get the following error:
>
>

>The Error Number is '1958'.
>The Error messages are 'Error loading printer driver.'.
>

>
>They can print from my app to a locally attached printer and they can print to the network printer from Word/Excel.
>
>Any ideas?? (I just sent an e-mail asking them to re-install the client workstation)
>
>Thanks,
>
>Kevin