Service Note

Security warning: "The publisher could not be verified. Are you sure...?

Issue

The following content applies to NA, APAC and EMEA Geos

After you install Microsoft Windows XP Service Pack 2 you may see a security warning dialog box when you attempt to run Adobe branded or Macromedia branded product installers and trials that you have downloaded from our website. The security warning dialog box may indicate that the publisher of the file could not be verified.

Note: This ServiceNote and issue applies to all Adobe brandedand Macromedia branded product installers and downloads.

Reason

The following content applies to NA, APAC and EMEA Geos

Windows XP Service Pack 2 enhances the security of your computer by tracking files that have been downloaded from the web and that could potentially harm your computer by running or installing malicious programs. Specifically, Windows checks that those programs have a digital signature attached.

Digital signatures verify the authenticity of software and contain information about the publisher of the software. If a digital signature is not found on a piece of software, the following dialog box appears:

The text at the bottom of the dialog box indicates that publisher information could not be found, and the Publisher field is listed as Unknown Publisher.

The dialog box presents the following buttons:

Run
Cancel

Solution

The following content applies to NA, APAC and EMEA Geos

As software publishers create and file their digital signatures, there may be a transitional period during which many reliable software applications will not yet have a digital signature. Even without a digital signature, users are able to click the Run button to confirm they want to install the software. The installation will proceed as normal.

Note: Users should only run programs that they have obtained from a trustworthy source.