The injunction will serve to reinstate Overture's search listings and remove those of Google, which were activated on the T-Online on August 7, 2003.
T-Online made the changes in August when Yahoo announced it was acquiring Overture. At the time, T-Online explained the move by saying that it saw Yahoo as a direct competitor.
Nick Hynes, managing director and president of Overture Europe, said. "We were very disappointed about T-Online's decision to stop serving Overture search listings, placing the German ISP in serious breach of contract at several levels."
He added: "Although our contract is watertight on this matter, our preference would have been to discuss a mutually acceptable solution rather than go to court."
Overture said it was pleased with the court's decision allowing it to offer its customers highly qualified contacts through T-Online, Europe's largest ISP.
"Overture has always maintained a very open and professional relationship with its partners and greatly appreciates their continued support for our business," Hynes said.
Michael Schlechtriem, a spokesman for T-Online, said: "T-Online will not comment on this decision. We have not received any temporary injunction so far. Once an injunction reaches us, it will be given to our legal department for thorough examination."
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