I downloaded Activeperl form your website, but when I go to start the installation process I get this error:
"This installation package could not be opened. Contact the application vendor to ensure that this is a valid installer package."
What is wrong?
This error message *always* indicates that the MSI installation package has been corrupted during the download. You will need to re-download.
It is very common to get repeated bad downloads. Please remember to flush your local cache, or switch to a different browser program. Also remember that the bad file is likely cached at your ISP, so you may have to wait a while before the bad cache is cleared.
You can verify the downloaded file against the MD5SUMS published in each download directory:
You can get a tool to generate md5sum hashes from here:
Often you can get past a cache issue by navigating to the file differently. You might have better luck starting from here: