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cFos Software GmbH, Bonn (Germany) develops communication software for Windows since 1993. Our products include cFosSpeed, the advanced Traffic Shaping software for broadband Internet, cFos Personal Net, a personal Web and Cloud server, cFos IPv6 Link, the IPv6 dial-up driver & software router and cFos / cFos Broadband Connect, the high-performance DSL and ISDN dial-up drivers.

Kontakta / Support

For support request or to contact us please use our contact form .

Legal notice

Information pursuant to TDG (German Tele Services Act):

The service provider responsible for and is the cFos Software GmbH, represented by owner-managers Christoph Lüders and Martin Winkler, Nordstr. 65a, 53111 Bonn, Phone: +49 2287669826, trade register entry: Bonn, HRB 9150; UStID / Vat-No.: DE813105998, eMail: .

cFos® is a registered trademark.


The data you provide on will only be used respective to its purpose and not be given to others.


Third parties may place and read cookies in your browser and can use web beacons, to collect data, which is available through placement of advertisements on our web page. If you don't want these cookies, you can deactivate cookies in your browser for our website.
To track the usage of our website, we set our own cookies and also use Google Analytics. IP-Addresses will be anonymized by Google. You can fully deactivate Google Analytics by installing an Add-On for deactivating Google Analytics offered by Google to your browser. Further information can be found here .
To avoid cookies being set by us, you can deactivate cookies in your browser for our website.
We also share information about your use of our site with our social media, advertising and analytics partners.

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