How to quick-fix Npctrl.Dll Missing Error

Npctrl.dll is a type of DLL file associated with MSDN 5065 developed by Microsoft for the Windows OS. Files such as npctrl.dll are small programs, similar to .exe files, which allow multiple software programs to share the same functionality, because they are shared files, DLL files exist outside of the software application itself. Although this provides many benefits for software developers, this separation can sometimes get corrupted and become a cause of error generation.


{Compatible with Windows 8, 7, XP, ME, Vista, 98, 2000 (32/64)
File Size: 4.9MB Download Time: <(dsl, 2sec, dialup 2min)>}

Since, you are facing the problem of Npctrl.dll file missing from your system you could alternatively try downloading from the internet or use Advanced System Repair Tool.

Causes –

If Windows cannot properly load your npctrl.dll file, you will encounter an error message.

If your dll registry is corrupted or it has registered itself wrongly or is in the wrong registry.
DLL errors, such as those associated with npctrl.dll, most often occur during computer startup, program startup, or while trying to use a specific function in your program.

Symptoms –

The most common npctrl.dll errors that can appear on a Windows OS based system are:

  1. “Npctrl.dll not found.”
  2. “The file npctrl.dll is missing.”
  3. “Npctrl.dll Access Violation.”
  4. “Cannot register npctrl.dll.”
  5. “Cannot find C:\Windows\System32\\npctrl.dll.”
  6. “Cannot start MSDN Disc 5065. A required component is missing: npctrl.dll. Please install MSDN Disc 5065 again.”
  7. “This application failed to start because npctrl.dll was not found. Re-installing the application may fix this problem.”

Solution –

Method 1: Manually register using Microsoft Register Server.

  • To re-register npctrl.dll from an elevated command prompt (Windows XP, Vista, 7, 8, and 10):
  • Click the Start button.
  • Type “command” in the search box… DO NOT hit ENTER yet!
  • While holding CTRL-Shift on your keyboard, hit ENTER.
  • You will be prompted with a permission dialog box.
  • Click Yes.
  • Type the following command: regsvr32 /u npctrl.dll.
  • Hit ENTER. These will UN-REGISTER your file.
  • Type the following command: regsvr32 /i npctrl.dll.
  • Hit ENTER. This will RE-REGISTER your file.
  • Close the command prompt window.
  • Re-start the program associated with npctrl.dll error.

Method 2: Uninstall and Reinstall MSDN Disc 5065 Program Associated with Npctrl.dll

If your npctrl.dll error is related to a specific program, reinstalling MSDN Disc 5065-related software could be the answer.

Instructions for Windows 7 and Windows Vista:

  • Open Programs and Features by clicking the Start button.
  • Click Control Panel on the right side menu.
  • Click Programs.
  • Click Programs and Features.
  • Locate npctrl.dll-associated program (e.g. MSDN Disc 5065) under the Name column.
  • Click on the MSDN Disc 5065-associated entry.
  • Click the Uninstall button on the top menu ribbon.
  • Follow the on-screen directions to complete the uninstallation of your npctrl.dll-associated program.

Instructions for Windows XP:

  • Open Programs and Features by clicking the Start button.
  • Click Control Panel.
  • Click Add or Remove Programs.
  • Locate npctrl.dll-associated program (e.g. MSDN Disc 5065) under the list of Currently Installed
  • Programs.
  • Click on the MSDN Disc 5065-associated entry.
  • Click the Remove button on the right side.
  • Follow the on-screen directions to complete the uninstallation of your npctrl.dll-associated program.

Instructions for Windows 8:

  • Hover the cursor in the bottom left of the screen to produce the Start Menu image.
  • Right-Click to bring up the Start Context Menu.
  • Click Programs and Features.
  • Locate npctrl.dll-associated program (e.g. MSDN Disc 5065) under the Name column.
  • Click on the MSDN Disc 5065-associated entry.
  • Click the Uninstall/Change on the top menu ribbon.
  • Follow the on-screen directions to complete the uninstallation of your npctrl.dll-associated program.
  • After you have successfully uninstalled your npctrl.dll-associated program (e.g. MSDN Disc 5065), reinstall the program according to the Microsoft instructions.


{Compatible with Windows 8, 7, XP, ME, Vista, 98, 2000 (32/64)
File Size: 4.9MB Download Time: <(dsl, 2sec, dialup 2min)>}

Even after all these methods mentioned above it fails to rescue you from the problem of Npctrl.dll Missing Error, Npctrl.dll Not Found Error, then only Advanced System Repair Tool can help you because one its best feature is to repair the registry of .dll files automatically. It scans and protects your system from virus corruption and repairs any damage done by them previously.


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