Unzip an Encrypted Zip

Demonstrates how to open an encrypted .zip archive and unzip.

Download: Chilkat .NET Assemblies

Chilkat.Zip zip = new Chilkat.Zip();

bool success;

//  Any string unlocks the component for the 1st 30-days.
success = zip.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show(zip.LastErrorText);
    return;
}

//  Set the password required for decrypting.
zip.DecryptPassword = "myPassword";

success = zip.OpenZip("encrypted.zip");
if (success != true) {
    MessageBox.Show(zip.LastErrorText);
    return;
}

int unzipCount;

//  Returns the number of files and directories unzipped.
unzipCount = zip.Unzip("c:/unzipDir");
if (unzipCount < 0) {
    MessageBox.Show(zip.LastErrorText);
}
else {
    MessageBox.Show("Success!");
}