Las correcciones de compatibilidad (también denominadas "shims" o "tecnología shim").
http://www.microsoft.com/latam/techn...01/default.asp
shim
A small piece of software that is added to an existing system program or protocol in order to provide some enhancement.
Read more in
http://www.answers.com/topic/shim
Wrap might be this
WRAP- Web Ready Appliances Protocol.
http://www.answers.com/topic/wrap-abbreviation
or this
wrap-To arrange or fold (something) about as cover or protection.
http://www.answers.com/wrap