Ubisoft has explained to Eurogamer that Splinter Cell Conviction was not held up on PC because of DRM issues.
"The reason that has been given for the delay is that the extra time was need to polish and debug the game," a Ubisoft spokesperson put down in words. "The slip has not been linked to the DRM."
The PC version of Splinter Cell Conviction will be released two weeks later than on Xbox 360.
Ubisoft's DRM measures have caused controversy as they require users to be connected to the internet at all times. This causes problems if connections temporarily drop.
"We know this choice is controversial but we feel is justified by the gameplay advantages offered by the system and because most PCs are already connected to the internet," said Ubisoft in January when its DRM measures were revealed.