Windows Code Integrity – CI.DLL

Ci.dll installs with your Windows Vista operating system. CI stands for "code integrity". According to Microsoft: "'Code Integrity (CI) protects Windows Vista by verifying that system binaries haven't been tampered with by malicious code and by ensuring that there are no unsigned drivers running in kernel mode on the system. CI starts as Windows starts up. The boot loader checks the integrity of the kernel, the HAL, and the boot-start drivers. After these have been verified, the system starts and the memory manager calls CI to verify any binaries loaded into the kernel memory space."

If this file is missing or damaged, Windows Vista may not boot. It’s also used for digital rights management after system startup. We'd recommend leaving this file in place.

Safe

Microsoft