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<DIV><FONT face="Courier New">So you want to have WinPcap (4.0.2) installed on
your machine, but then you want to keep wpcap.dll into your application folder,
also. Right?</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Please consider that WinPcap is not just
wpcap.dll, it uses at least one other DLL, packet.dll (and packet.dll depends on
the specific version of Windows that you are running).</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Have a nice day</FONT></DIV>
<DIV><FONT face="Courier New">GV</FONT></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=naveen20_r@hotmail.com href="mailto:naveen20_r@hotmail.com">Naveen
Kumar R</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=winpcap-users@winpcap.org
href="mailto:winpcap-users@winpcap.org">winpcap_users ORG</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, November 12, 2008 4:26
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [Winpcap-users] Query
Regarding WinPcap 4.0.2.</DIV>
<DIV><BR></DIV>Hi GV,<BR> <BR>Thanks for your detail
Information.<BR> <BR>I want to copy wpcap.dll other than sysWOW64
because i dont want to copy the dll to the system directories.i want to
retain the 3rdparty dll in my application directory.<BR> <BR>previous
version of Wpcap.dll (3.0.0.18) is alaways available in my Application
directory(C:\MyAPP\APPDLL\wpcap.dll), i am able to load the same with the
loadlibrary(<FONT face="Courier New">"<FONT
face=Verdana>C:\MyAPP\APPDLL\wpcap.dll)</FONT>"</FONT>) API. if i replace the
newer dll (wpcap.dll of version 4.0.2), my application dll wont load this
version of DLL. that's the reason i asked the newer version is
having any new caveats that it should always available in the syswow64
Directory. <BR> <BR>Regarding npf.sys you had suggested that it should
always present in the c:\windows\system32\drivers, so i will use the
same location to copy the npf.sys driver.<BR> <BR>with your
inputs, i will drop the use of silent installation. IF you have
any concern please let me know.<BR> <BR>Thanks,<BR>Naveen <BR><BR>
<HR id=stopSpelling>
<BR>From: gianluca.varenni@cacetech.com<BR>To:
winpcap-users@winpcap.org<BR>Subject: Re: [Winpcap-users] Query Regarding
WinPcap 4.0.2.<BR>Date: Tue, 11 Nov 2008 07:41:09 -0800<BR><BR><BR>
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<DIV><FONT face="Courier New">First of all, a bit of clarification on how the
"system32" folder works on 64bit systems.</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Physically, on a 64bit system, the core dlls are
stored into two folders:</FONT></DIV>
<DIV><FONT face="Courier New">- c:\windows\system32 contains the 64bit version
of the core DLLs.</FONT></DIV>
<DIV><FONT face="Courier New">- c:\windows\sysWOW64 contains the 32bit version
of the same core DLLs.</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">The drivers always reside under
c:\windows\system32\drivers, because on a 64bit machine all the kernel mode
drivers should be 64bit.</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">When a 32bit application runs on a 64bit system,
the OS uses a file system redirector, so that all the requests (done by the
32bit application) to a file in c:\windows\system32 get redirected to
c:\windows\sysWOW64</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Going back to WinPcap (4.0.2), on a 64 bit
system npf.sys resides in c:\windows\system32\drivers (because it's a 64bit
driver) and all the user mode DLLs reside in c:\windows\sysWOW64 (since they
are 32bit DLLs). </FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">I don't know exactly why you want to move
wpcap.dll to another folder, but it should definitely work with these
caveats:</FONT></DIV>
<DIV><FONT face="Courier New">- you CANNOT copy wpcap.dll into
c:\windows\system32, where the 64bit OS DLLs are located. Your
application will never be able to access that folder because it's hidden by
the FS redirector (this is not 100% true, as there is a way to disable the FS
redirector)</FONT></DIV>
<DIV><FONT face="Courier New">- if you try to load wpcap.dll located in
c:\windows\sysWOW64 (i.e. the default install location), you need to do
LoadLibrary("C:\\windows\\system32\\wpcap.dll", 0). </FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Regarding npf.sys, that file should always
reside in c:\windows\system32\drivers</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Regarding a silent version of the installer, for
a number of reasons this option is not available.</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">Have a nice day</FONT></DIV>
<DIV><FONT face="Courier New">GV</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV>----- Original Message ----- </DIV>
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<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=naveen20_r@hotmail.com href="mailto:naveen20_r@hotmail.com">naveen
kumar</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=winpcap-users@winpcap.org
href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, November 11, 2008 6:45
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Winpcap-users] Query
Regarding WinPcap 4.0.2.</DIV>
<DIV><BR></DIV><BR>Hi All,<BR><BR>I have a query regarding the winpcap
4.0.2. my application is using for pocket capturing using winpcap and
nps.sys driver. Previously I was using the winpcap 3.0.0.18 in my
application it was working fine for me for both windows 2000 and windows
2003 32 bit OS. <BR><BR>I want to support my application on windows server
2003 64 bit OS and windows vista , so i used the winpcap latest version
4.0.2 with my application.<BR><BR>My application dll uses the load library
windows api to load the wpcap.dll. If i copy this wpcap.dll to the sysWOW64
directory my dll will perfectly load the wpcap.dll and it will also load the
npf.sys from system32\drivers directory and rest of the things work fine.
but my application dll is failing to load the 4.0.2 wpcap.dll, if i copy the
dll to directory other than system32 in the 64 bit OS of windows server
2003, even though i am giving the absolute path of the location to load
wpcap.dll in loadlibrary API. <BR><BR>if i use the wpcap.dll of version
3.0.0.18 in location other than sysWOW64 my Application dll loads the
wpcap.dll, but it fails to load the npf.sys driver from the same location
where dll is present. <BR><BR>My query is wheather the latest wpcap.dll and
npf.sys should always available in the sysWOW64 and system32\drivers
directory for the 64 bit windows 2003?<BR><BR><BR>One more Query <BR>is it
possible to run the Winpcap installation as a silent installation?
<BR><BR>If you have any concerns please let me know. Thanks in
advance.<BR><BR>Regards,<BR>Naveen<BR><BR>
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