A number of issues can show up on your system if there are some issues with the dll files. You will see such issues while trying to use any application or after you have conducted an upgrade of the operating system. Some of such issues that might require a dll file repair tool has been discussed as follows.
Issue of appcrash:
The operating system that is used in the computer might be Windows Vista. Recently you may have had a problem with the monitors and therefore you may have fitted a new motherboard. Since then you may keep on seeing appcrash error messages. To get the exact details of the issue you may check the event viewer from the start menu of the system. You may see that the application name is dwm.exe and the faulting module name is ntdll.dll. It might also show that the exception code is 80000003 and exception offset is 0004884e. To repair dll file, you may uninstall and reinstall the display drivers.
To uninstall the device driver, you will have to go to Start and type devmgmt.msc and then press enter. After this you will have to select uninstall. You will also have to uninstall the drivers from Program and Features by going to the start menu and typing appwiz.cpl and press enter. Then you will have to search the display driver and uninstall the package. You will have to restart the computer and check if the issue stays. However, the issue may still remain.
Issue of missing dll:
You might have recently installed Windows 10 Technical Preview and you also have Microsoft Visual C++ 2010 x64. Whenever you may try to launch any gaming application, the system may report that some dll files are missing. It may show that the files d3dx9_43.dll, X3DAudio1_7.dll and XINPUT1_3.dll are missing. This dll repair cannot be done by updating Windows. This type of issue might have been caused due to some corruption in the system files. The files might have been accidentally deleted from your system. Such type of issue may also appear due to incompatible video card drivers. You may try to install the drivers in compatible mode. However, the problem may still remain.
Module not found errors:
You may have been using Windows 7 64 bit operating system on your Dell XPS. You might want to upgrade to Windows 10. Soon after the upgrade when you start the Windows, you may see that some errors have occurred. A number of tabs may open and show that an issue occurred in starting C:\~1\COMMON~1\System\SysMenu.dll. It may also state that the specified module is missing. Such an issue might be due to third party applications or services. For this dll problem repair, you can use System File Checker scan by pressing the Windows key and R together. This process will scan the system to identify the point of error.
Getting rid of the issues:
Even after applying all the techniques for the purpose of dll error repair, if the issue remains, it is then that you have to use a tool. You must use a reliable and professional tool such as DLL Suite. This dll repair tool will help you in replacing and fixing corrupted or missing dll files.