Article ID: 167158
Article Last Modified on 10/16/2007
CODEBASE="http://example.microsoft.com/somecontrol.ocx#version=4,70,0,1086"Because this downloads and installs only the .ocx file, this solution relies on any necessary supporting DLLs already existing on the client machine. In most cases, it should not be assumed that these DLLs will exist on the client and be the correct version.
CODEBASE="http://example.microsoft.com/doyoutrustme.inf"An .inf file controls the installation of an .ocx file and its supporting files. This method is NOT recommended because it is not possible to sign an .inf file (see the REFERENCES section for references on code signing).
CODEBASE="http://example.microsoft.com/acontrol.cab#version=1,2,0,0"Note here that the #Version information applies to the version of the control specified by the CLASSID parameter of the OBJECT tag.
Microsoft Cabinet SDK
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncabsdk/html/cabdl.asp
<OBJECT ID="Spindial1" WIDTH=200 HEIGHT=200
CLASSID="CLSID:06889605-B8D0-101A-91F1-00608CEAD5B3"
CODEBASE="http://example.microsoft.com/spindial.cab#Version=1,0,0,001">
<PARAM NAME="_Version" VALUE="65536">
<PARAM NAME="_ExtentX" VALUE="2646">
<PARAM NAME="_ExtentY" VALUE="1323">
<PARAM NAME="_StockProps" VALUE="0">
<PARAM NAME="NeedlePosition" VALUE="2">
</OBJECT>
In this case, Spindial.cab must contain two files, Spindial.ocx and
Spindial.inf. The command to build this cabinet file is similar to the
following depending on the path to your installation of the Cabinet
Development Kit:
C:\CabDevKit\cabarc.exe N spindial.cab spindial.ocx spindial.infThe following is an example .inf for the MFC Spindial control. This .inf file can be modified to download any MFC ActiveX Control by changing Spindial's information to the desired MFC ActiveX Control's information. See comments below.
; ========================= spindial.inf ========================
; This .inf file will control the installation of the MFC Spindial
; control. This control has been compiled with Visual C++ version 4.2.
; The FileVersion tags in the dependent DLLs section on this file
; reflect this requirement.
[version]
; version signature (same for both NT and Win95) do not remove
signature="$CHICAGO$"
AdvancedINF=2.0
[Add.Code]
spindial.ocx=spindial.ocx
; These are the necessary supporting DLLs for MFC 4.2 ActiveX Controls
mfc42.dll=mfc42.dll
msvcrt.dll=msvcrt.dll
olepro32.dll=olepro32.dll
; thiscab is a keyword which, in this case, means that Spindial.ocx
; can be found in the same .cab file as this .inf file
; file-win32-x86 is an x86 platform specific identifier
; See the ActiveX SDK - ActiveX Controls - Internet Component Download -
; Packaging component code for automatic download
[spindial.ocx]
file-win32-x86=thiscab
; *** add your controls CLSID here ***
clsid={06889605-B8D0-101A-91F1-00608CEAD5B3}
; Add your ocx's file version here.
FileVersion=1,0,0,001
RegisterServer=yes
; dependent DLLs
[msvcrt.dll]
; This is an example of conditional hook. The hook only gets processed
; if msvcrt.dll of the specified version is absent on client machine.
FileVersion=4,20,0,6164
hook=mfc42installer
[mfc42.dll]
FileVersion=4,2,0,6256
hook=mfc42installer
[olepro32.dll]
FileVersion=4,2,0,6068
hook=mfc42installer
[mfc42installer]
file-win32-x86=VALUE=http://activex.microsoft.com/controls/vc/mfc42.cab
; If dependent DLLs are packaged directly into the above cabinet file
; along with an .inf file, specify that .inf file to run as follows:
;InfFile=mfc42.inf
; The mfc42.cab file actually contains a self extracting executable.
; In this case we specify a run= command.
run=%EXTRACT_DIR%\mfc42.exe
; ====================== end of spindial.inf =====================
The following sections of this .inf file will need to be modified depending
on your control and the version of MFC that you are using to build your
control:
spindial.ocx=spindial.ocx [spindial.ocx]
clsid={06889605-B8D0-101A-91F1-00608CEAD5B3}
FileVersion=1,0,0,001
The CLSID above can be obtained for your control from the control's ODL
file. The CLSID is associated with the coclass for the control. For
instance, the above CLSID was obtained from the following section of
Spindial.odl:
[ uuid(06889605-B8D0-101A-91F1-00608CEAD5B3),
helpstring("Spindial Control"), control ]
coclass Spindial
The FileVersion for the control can be obtained from the version resource
for the control. As is true of any file with a version resource, this can
be obtained by opening the file (Spindial.ocx in this case ) version
resource with Visual Studio. From the File menu, select Open, and click Open as: Resources. Open the Version resource; the FileVersion that you are interested in is listed after FILEVERSION.Olepro32.dll 4,1,0,6038 Mfc40.dll 4,1,0,6139 Msvcrt40.dll 4,10,0,6038
Olepro32.dll 4,2,0,6068 Mfc42.dll 4,2,0,6256 Msvcrt.dll 4,20,0,6164
Olepro32.dll 5,0,4055,1 Mfc42.dll 4,21,0,7022 Msvcrt.dll 5,0,0,7022
Olepro32.dll 5,0,4055,1 Mfc42.dll 4,21,0,7160 Msvcrt.dll 5,0,0,7128
Olepro32.dll 5,0,4055,1 Mfc42.dll 4,21,0,7160 Msvcrt.dll 5,0,0,7128
Olepro32.dll 5,0,4230,1 Mfc42.dll 4,21,0,7303 Msvcrt.dll 5,0,0,7303
Olepro32.dll 5,0,4261,0 Mfc42.dll 6,0,8168,0 Msvcrt.dll 6,0,8168,0
Packaging ActiveX Controls
http://msdn.microsoft.com/library/default.asp?url=/workshop/components/activex/packaging.asp?frame=true
Safe Initialization and Scripting for ActiveX Controls
http://msdn2.microsoft.com/en-us/library/Aa751977.aspx?frame=true#iobjsafe
Signing Code with Microsoft Authenticode Technology
http://msdn2.microsoft.com/en-us/library/ms537358.aspx
Using ActiveX Controls to Automate Your Web Pages
http://msdn.microsoft.com/library/default.asp?url=/workshop/components/activex/tutorial.asp?frame=true
264570 INFO: WebCast: How Does Internet Component Download Work?
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