The process rndll32.exe is implemented in relation to the operation of the graphic processing unit found on the graphics adapter. It is also related to the display properties feature used by the Microsoft Windows Operating System platform.The implementation of the file rndll32.exe is commonly observed with the installation of an NVIDIA graphics card, which is used to control and manipulate the behavior of the display interface of a computer system for various software applications. The process rndll32.exe is used to take advantage of the built-in feature of the Microsoft Windows environment in controlling a wide range of visual display options that can be accessed from the Display Properties Panel of the system.Settings and configuration procedures done under the display properties normally affect the visual styling of the entire system. It also covers how text, fonts, colors, and resolutions are reflected on the computer screen.The functional visual display as seen by the user via the computer monitor is actually a result of the combined capabilities of the monitor and the video card hardware component, which are controlled by software applications similar to the rndll32.exe process commonly bundled with the device drivers. The usage of the rndll32.exe module together with the graphic card driver allows the user to dictate the resolution settings limited by the capability of the display media including certain display properties like brightness, contrast, hue, sharpness, and other details. The implementation of the process rndll32.exe will also most likely affect how software applications are shown on the display media and how Web pages are viewed by the user.Microsoft Windows Operating System platforms come bundled with various graphic display drivers considered as generic, and these provide limited functions in terms of maximizing the full potential of the graphic display card. The importance of the computing power exerted by the video adapter comes into play when dealing with applications that require complex computations in order to accurately display images on the computer screen. This functionality can only be tapped via the supporting components of the video card like the file rndll32.exe, which allows users to fully appreciate the graphic acceleration commonly associated with computer games and other demanding applications like 3D animation and rendering.The most common instance for the usage of the rndll32.exe process is seen in gaming applications where the usage of dual monitors is becoming increasingly popular mainly because of the dropping prices of monitors and the increasing capabilities of video adapters to support them. As in the case of World of Warcraft, the rndll32.exe process is used in relation to the module nview.dll in order to create a user profile, which will modify the display either as a regular or as a widescreen feature.Using the widescreen feature allows the user to tap on the functionality of the file rndll32.exe in allowing 2 monitors to function as a single and seamless gaming console entity.
Non-system processes like rndll32.exe originate from software you installed on your system. Since most applications store data on your hard disk and in your system's registry, it is likely that your computer has suffered fragmentation and accumulated invalid entries which can affect your PC's performance.

In Windows Task Manager, you can see what CPU, memory, disk and network utilization is causing the Desktop and Window Manager process. To access the Task Manager, hold down the Ctrl + Shift + Esc keys at the same time. These three buttons are located on the far left of your keyboard.

This process is considered safe. It is unlikely to pose any harm to your system. The rndll32.exe file should be located in the folder c:\windows\system32\. Otherwise it could be a Trojan.

This process is not considered CPU intensive. However, running too many processes on your system may affect your PC’s performance. To reduce system overload, you can use the Microsoft System Configuration Utility (MSConfig) or the Windows Task Manager to manually find and disable processes that launch upon start-up.

Use the Windows Resource Monitor to find out which processes and applications write/read the most on the hard drive, send the most data to the Internet, or use the most memory. To access the Resource Monitor, press the key combination Windows key + R and then enter 'resmon'.