C:\Windows\System32\rundll32.exe is not a valid Win32 application. Friday, October 17, 2008 at 1:13 am Windows XP Annoyances Discussion Forum Posted by Jack Eiot (4 messages posted) I can't open hardly any files without getting this message. Also, I can't search files on my folder. I get a message saying, "A file that is required to run search companion cannot be found". On top of that when I go to microsoft to install a hotfix to the search companion it tells me, "Unknown error encountered during Windows validation. The validation service is unable to determine whether your copy of Windows is genuine. Please validate again. If additional attempts result in validation errors you may want to try again later". This is killing me, I've spent over two days trying to figure out how to fix this. Please, someone help! Responses to this message: re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Ricer46: Friday, October 17, 2008 at 1:56 am) All messages in this thread [show all] C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Jack Eiot: Fri, Oct 17, 2008, 1:13 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Ricer46: Fri, Oct 17, 2008, 1:56 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Jack Eiot: Fri, Oct 17, 2008, 2:19 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Ricer46: Fri, Oct 17, 2008, 2:24 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Jack Eiot: Fri, Oct 17, 2008, 2:35 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Ricer46: Fri, Oct 17, 2008, 2:48 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (Jack Eiot: Fri, Oct 17, 2008, 2:51 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (alex: Fri, Oct 17, 2008, 3:49 am) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (appleoddity: Fri, Oct 17, 2008, 3:42 pm) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (zeeshan masood: Sun, Sep 26, 2010, 1:06 pm) re: C:\Windows\System32\rundll32.exe is not a valid Win32 application. (MartinM: Sun, Sep 26, 2010, 3:21 pm) Reply or follow-up to this message Search this forum Start a new thread on a different subject Report abuse of the forum Return to the Windows XP Discussion Forum