Missing Aspnet_perf.dll error solution for Windows

Please read the instructions carefully before you download the Aspnet_perf.dll.Take the proper steps to safely clean and repair windows errors.

1. Where should this file go? After you download Aspnet_perf.dll on your machine, paste it in directory where it missing, and also copy it to

Windows 95, 98, ME C:\Windows\System
Windows NT, 2000 C:\WinNT\System32
Windows XP, Vista, 7, 8 C:\Windows\System32
64-bit Windows C:\Windows\System64

If you can't find windows directory try:
a. Press and hold Windows key on your keyboard, then press button R.
b. Enter the command "cmd" and press Enter
c. In a command window enter the command "set systemroot" and press Enter. It will display system directory.
2. Go to "start" ==> "run" and type "regsvr32 Aspnet_perf.dll" to register the file to the system.

File Information
  • NameAspnet_perf.dll (Aspnet_perf.dl_)
  • CategoryOperating System > dll
  • DescriptionMicrosoft ASP.NET Performance Counter DLL
    Microsoft .NET Framework
  • FilenameAspnet_perf.zip
  • Filesize16.33 kB
  • Filetypezip (Mime Type: application/zip)
  • Rating 4.7 / 5 , 114 rating
  • MD5: a18bc9a5eb7b348ab414a45cd2452d28
  • SHA1: bacf9c4e2d2d60a08a9589b0109c3da736b63a9e
  • SHA265: $5$rounds=5000$dlldownloadsyste$deYiK.ADi69s77wihAuTVTkKtBCd9v0n/Uv55shCx40

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All possible solutions

Got computer error message like:

"Aspnet_perf.dll crash"
"bad image"
"error loading"
"Aspnet_perf.dll was not found"
"the procedure entry point Aspnet_perf.dll error"
"Aspnet_perf.dll could not be located"
"Access Violation"
"Cannot register Aspnet_perf.dll"

at startup or shutdown or run program?
No "missing dll" anymore - Repair dll errors - How to fix windows dll corrupt on your windows xp,vista,2000/2003,win7, win8,win10

  • Download and install Aspnet_perf.dll.
  • Download and install the latest update.
  • Install windows updates automatically/regularly, allow Windows check updates in the background.
  • Reinstall the application.