Java applets running in the context of a web browser are usually not permitted to access local resources like the printer or the file system.

In order to grant enhanced privileges to an applet it must be digitally signed. TIFFY's archive files are signed with a class 3 certificate issued by "TC Trustcenter Germany". Your web browser needs to have a "root certificate" from TC Trustcenter in it's certificate database in order to be able to verify the authenticity of TIFFY's certificate.

Netscape Communicator as of version 4.5 and MS Internet Explorer as of version 5.01 have this root certificate preinstalled by default. If this root certificate is not preinstalled in your browser, you can load it from:

http://www.trustcenter.de/english/certificates/ca_certificates.htm
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