File attachment warning message

[CC]

I think I got past all the warning messages except this one:

"You have chosen to open a file that may contain viruses or be
otherwise harmful to your computer. It is important to be certain
that the file comes from a trustworthy source. Do you want to
continue?"

This message is displayed when a person tries to open a document (e.g.
an Excel document) that is attached to an Infopath form (file was
attached with the file attachment control). Is there a way to avoid
this error?

Thanks,
Carol

 

[Scott Roberts [MSFT]]

Unfortunately, that error is for security purposes and cannot be avoided.
Why do you want to disable this warning?

Thanks,
Scott

 

[CC]

As our Document Control group deals with a number of documents
everyday, it is tedious to have to acknowledge the same warning
message again and again.

Is there no way to register all instances of of a certain document
type (e.g. .doc, .xls, etc) as 'safe' to open without that message?

Thanks,
Carol