What is ASAPIW2k?

The genuine ASAPIW2k.sys file is a software component of Apache by Pinnacle Systems.
The application programming interface for Apache servers, this system file provides other computer programs access to utilize Apache server functions. APIs provide other applications readily accessible functions of the process they are servicing. ASAPIW2K.sys is designed for systems that support Windows 2000 architecture. Pinnacle Systems utilizes the ASAPIW2K driver to provide their Media Center with Apache functionality. Founded in 1986 in California, Pinnacle Systems is a leading manufacturer of AV hardware.

ASAPIW2K stands for Apache Server Application Programming Interface Windows 2K

ASAPIW2k.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if ASAPIW2k.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for ASAPIW2k drivers in need of updating

ASAPIW2k.sys file information

The process known as ASAPI belongs to software asapi or RAPID (Studio (version 10)) by Pinnacle Systems GmbH ( or VOB Computersysteme GmbH (

Description: ASAPIW2k.sys is not essential for the Windows OS and causes relatively few problems. ASAPIW2k.sys is located in the C:\Windows\System32\drivers folder. The file size on Windows 10/8/7/XP is 11,264 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. There is no file information. The program has no visible window. It is not a Windows system file. There is no detailed description of this service. ASAPIW2k.sys appears to be a compressed file. Therefore the technical security rating is 38% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with ASAPIW2k.sys, you may also want to uninstall the program using the Control Panel ⇒ Uninstall a ProgramRAPID (Studio 10) or ASAPI.

Recommended: Identify ASAPIW2k.sys related errors

Important: Some malware disguises itself as ASAPIW2k.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the ASAPIW2k.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

CD-RW driver installed by VOB or Pinnacle software
This file has installed itself and disabled any possiblity of using my dvd ram drive as a sucks. if you delete it , you lose all drives....  
It is a driver filter that can not be stopped by SCM (Services). To remove, you must remove the keys in registry and not delete the file. It's seem to be a CD-RROM filter.
Operations to remove ASAPIW2k. Launch regedit (start, run, regedit); Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet. From this key, search 'LowerFilters' only in values. For each LowerFilters found, remove ASAPIW2k if present in data (should be present only for CD-ROM device). Reboot the PC and ASAPIW2k is now disabled. This is not a malware but just a File System Filter used by some video applications.
installed by Pinnacle Studio but disables writing and sometimes, sensing DVDs.
  Frank Murray  
I believe this file to be malware of some kind. It has caused numerous hangs to my system. I include a link below. Removing the file causes all optical drives to disappear. Follow the link below to get your drives back.
  DT   (further information)

Rating chart

Summary: Average user rating of ASAPIW2k.sys: based on 15 votes with 7 user comments. 9 users think ASAPIW2k.sys is essential for Windows or an installed application. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users suspect danger. One user thinks ASAPIW2k.sys is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving ASAPIW2k issues

A clean and tidy computer is the key requirement for avoiding problems with ASAPIW2k. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ASAPIW2k.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ASAPIW2k.sys [all]