Quote:
Originally Posted by bluebells
"This installation package could not be opened. Contact the application vendor
to verify that this is a valid Windows Installer package."
That is what pops up when I try to run the program.
What can I do about it pleas help
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What OS are you using? Did you download the correct installer?
did you read the FAQ (
http://manual.calibre-ebook.com/faq.html#id53 ) on why downloads fail?