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Frequently Asked Questions

Zoiper fails to install

If you are experiencing issues with the initial Zoiper installation, this might be due to your antivirus software or file corruption.

You may receive an error message during the installation process, which could be due to a corrupted file while downloading. Remove the previously downloaded Zoiper and download it again. If the issue persists, try downloading the installation file to a different location with another browser.

However, if there is notification from your Antivirus, stating that Zoiper might be infected, this notification from your antivirus software is a false positive. The Zoiper installer downloaded from our webshop (link sent to your email), or from our website (the free version), does not contain any malicious software. You can verify that on - just submit the file for testing and wait to receive the report.