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When I try to add a new file to a zipped archive, I get the message "Operation not supported." Anyone know how to fix this?

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1 Answer 1

up vote 2 down vote accepted

There might be a problem with the permissions of the file.

Right-click the file, choose Properties, then Security, and verify that you have the permissions to modify this file. You might also verify you have the necessary permission on the directory, since 7Zip probably needs to create a new archive for this operation.

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