Plugin "Fopn-Foweb" Acrobat Writer

,
A la hora de abrir un documento de Acrobat, me pide instalar el plugin
"Fopn_foweb" de Acrobat. Tengo la version 5 de Acrobat Writer.
El problema que tengo, es que a la hora de abrirlo me sale el siguiente
mensaje.

"Potential CopyRight Violation Detected
You are attemping to open this document from an unauthorized Computer
Please contact SAE customer Support at 724-776-4970 (8-5 EST). If you feel
you hace received this message in error or would you like to change your
usage privileges. You can also visit SAE website at www.sae.org to purchase
aditional licenses of the document""

Que puedo hacer para abrir el documento???? El acrobat 5 es original.

MUCHAS GRACIAS