Back in the days when the personal computer first gained popularity, both computer hardware and software were relatively simplistic. As time went by and users and companies needed more and more sophistication, both hardware and software evolved accordingly. Unfortunately, so did the risks. People began writing malware (viruses, trojans, and the like) that caused glitches in applications.
As time went on and computers and software became more, so did the viruses. In fact, those who wrote malware. The software publishers had to make their applications and operating systems more secure because of this, and with each new version of an app or an OS, new security measures are employed.
Unfortunately, this makes it more difficult applications such as CeedoClient to function correctly, as some of these security measures prevent certain functionality in Ceedo from working correctly.
Due to various memory, protected processes and code integrity security enhancements added by Microsoft in Windows 8.1 and even more so in Windows 10, and the particular way in which CeedoClient injection and hooking works, CeedoClient relies heavily on driver-assisted functions to work with Windows 8.1, and is entirely incompatible with Windows 10. This means that CeedoClient is only compatible with Windows XP, 7, and Windows 8.1.