When you distribute a Microsoft Visual FoxPro application that uses an ActiveX
control (.ocx file), the .ocx file must be registered correctly for it to
work correctly. The Visual FoxPro Setup Wizard or InstallShield Express in Visual FoxPro 7.0 or a later version of Visual FoxPro will register an .ocx file
correctly, provided that you select the OLE check box in Step 6 for the
.ocx file. If a Visual FoxPro application that uses an .ocx file is
distributed by some other method, the .ocx file must be registered manually.
This article describes how to register an .ocx file manually.
You can use the Microsoft Register Server (Regsvr32.exe) to register a 32-
bit .ocx file manually on a 32-bit operating system. In Visual FoxPro 3.0
and 3.0b, Regsvr32.exe is located in the \Vfp\Samples\Ole directory, and in
Visual FoxPro 5.0, Regsvr32.exe is located in the \Vfp directory. In Visual
FoxPro 6.0, Regsvr32.exe is found in the Distrib.src directory of the
Visual FoxPro directory. It may be distributed with a Visual FoxPro
application. The syntax for using Regsvr32.exe is as follows:
Regsvr32 [/u] [/s] <OCX File Name>
Note
/u means Unregister the .ocx file.
/s means Silent Mode (display no messages).
The following example registers the Microsoft MAPI ActiveX Control
without displaying any messages:
Regsvr32 /s MSMAPI32.OCX
To implement this example in a Visual FoxPro application, use the RUN
command as follows:
RUN /N Regsvr32 /s MSMAPI32.OCX
Note If an error occurs when registering a control, do the
following:
| 1. | Verify in the Registry that the control has not been registered before.
|
| 2. | Verify that the following files are in the Windows\System directory:
mfc30.dll olepro32.dll msvcrt20.dll
mfc40.dll msvcrt40.dll
If one of these files is missing, you may receive the following error
message:
Error: OLE Error Code 0x80040112: Appropriate license for this
class not found. |