The website for the WinMX file sharing service has been shut down, suggesting that the service, best known for enabling copyright infringements, has crumbled under legal pressure from the Recording Industry Association of America (RIAA).
Cease and desist letters were sent out last week by the RIAA to seven file sharing services, but the organisation declined to specify which services were targeted.
The RIAA used a July ruling by the US Supreme Court stating that makers of services used for copyright infringements are liable for such violations.
According to another report, however, the firm moved out of the building last year.
"File sharing will get less mainstream in the long term, but it will always be there," he wrote.
"The challenge for the music industry is how to continue to push it to the margins and fill the void with legitimate services.
"If e-Donkey and WinMX do disappear it will be an important victory for the music industry, but it will just be one won battle in the long-term war."
HP and Centrica are the first industry partners to sign up to the government's new Code
New ice grows faster but is also more vulnerable to weather and wind
With a crackdown on cheats is coming in November, PUBG rushes to fix matchmaking problems introduced in Update #22
New material uses carbon dioxide from the air to repair and reinforce itself