How to Replace PSAPI.DLL

1. Open your Web browser and navigate to the download page for a working version of psapi.dll. You can find a link to this location in the Resources section.
2. Click the download link and download the .zip file containing the .dll file. Take note of the location to which the file is being downloaded.
3. Navigate to the .zip file on your computer after the download has finished. Double-click the file to open it in WinZip, then click the 'Extract' button and extract it to your computer's desktop.
4. Right-click on the 'Start' button in Windows and select 'Explore' from the pop-up menu. Navigate through the file menu in the left-hand pane to the system folder for your version of Windows. If you're using a 32-bit version of Windows XP or Vista, it's 'C:\Windows\System32.' If you're using 64-bit Windows XP or Vista, it's 'C:\WindowsSysWOW64.' In Windows 2000 and NT, it's 'C:\WINNT\System32.' In Windows 95 and 98, it's 'C:\Windows\System.'
5. Highlight the system folder by left-clicking it once; then drag and drop the psapi.dll file from your desktop into the right-side panel of the Explore window.
6. Click 'Replace' when Windows asks you if you want to replace the existing psapi.dll with the new one.