"The archives of the International Prisoners-of-War Agency will be available for consultation by the public in August 2014, through an online application."
The archives of the International Prisoner-of-War Agency are included in UNESCO’s Memory of the World Register.
The Agency’s collections consist of some 500,000 pages of lists and six million index cards. Each year up to July 2011, the ICRC processed several hundred requests for information submitted by historians and relatives of prisoners.
In 2008, the ICRC’s archivists began a project to restore and scan the lists and index cards. As a result, the documents are currently unavailable for consultation and the ICRC cannot at present deliver certificates of captivity for people who were prisoners during the First World War.
Once this project has been completed, more efficient research methods can be developed and time will be saved in accessing the information. Thanks to the online application, anyone will be able to search the archives directly on the internet as of August 2014."
There is also an interesting free publication from the ICRC here that is worth looking at.
These records - and associated information - can now be accessed here.