Does anyone know what the initpki.dll used for?

By jbarker1
Feb 7, 2006
  1. I keep getting the following error message when I try to restore my XP install by doing an upgrade:

    Setup had problems registering the following OLE control DLL:


    Contact your system administrator, who may provide assistance in diagnosing this problem.

    The next error below this is:

    The signature for Windows XP Home Edition Upgrade is invalid. The error code is 426.

    The service has not been started.

    What service?

    I tried registering the dll manually using regsvr32 but it didn't help.

    Any ideas?
  2. cyrax

    cyrax TS Rookie Posts: 69

    While i'm not sure what that file is, you may need to either repair your installation, or do a clean reinstall.
  3. jbarker1

    jbarker1 TS Rookie Topic Starter

    I was afraid of that. This is my laptop and I am trying to copy over all my important files to my D drive to do a complete fresh install. I really didn't want to have to do that but it is leaning more and more to that direction.
  4. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    Initpki.dll is used by the Windows crypto system and it deals with signatures and encryption. I suppose failing is very the reason why the Upgrade signature can't be verified
    Clebermag likes this.
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