[Winpcap-users] Cannot get Packet.dll to load onr Vista

Gianluca Varenni gianluca.varenni at cacetech.com
Mon Aug 17 09:38:08 PDT 2009

Things get complicated on a 64 bit machine. First of all, there are two versions of packet.dll (as of 4.1beta5), the 32bit one and the 64 bit one.

The 64bit one goes to windows\system32
The 32bit one goes to windows\sysWOW64

Moreover, if the application that you use to copy the files is 32bit (e.g. you use total commander), then things get more complicated. The *real* windows\system32 folder is hidden. If you try to open a file in windows\system32, the OS redirects your calls to windows\sysWOW64.

Out of curiosity, why are you trying to recompile and manually install WinPcap. In some previous mail you were saying that you needed to build a WinPcap-based application. If so, there is no need to recompile WinPcap and reproduce the installer.

Have a nice day

  ----- Original Message ----- 
  From: Dennis Drew 
  To: winpcap-users at winpcap.org 
  Sent: Monday, August 17, 2009 9:10 AM
  Subject: [Winpcap-users] Cannot get Packet.dll to load onr Vista

  Well, if I install the Wdpcap exe, and it installs a Packet.dll in the Windoes\System - or SysWOW64 directory, it can be found and runs. But when I build my own Packet dll in Win32 or 64 bit and put both in Windows System or SysWOW64, the Vista cannot "see" or load them. Whne I rename mine to Packet.dll_mine and rename the one installed by the Wdpcap installer to Packet.dll, everything is fine. By the way, under XP Pro, my Packet dll loads and runs fine. 

  Something is preventing a debug version to load under Vista. Anyone else having this problem and have a solution?

  Dennis Drew


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