PRB: File Does Not Appear to Be a Valid OLE Control

ID: Q138437

3.00 WINDOWS

 kbole kbprb

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 3.0

SYMPTOMS

When you use Accusoft's Image Format Library .OCX with Visual FoxPro and attempt to register added controls, you receive this error:

   The file does not appear to be a valid OLE control

After you clear the first error message, you may receive this additional error message:

   Unable to register the OLE control.

Using this .OCX control in Microsoft Visual C++ or Microsoft Access works fine.

Accusoft's Image Control Library .OCX is manufactured by Accusoft, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

CAUSE

Accusoft's Image Control Library .OCX is a 16-bit .OCX rather than a 32-bit OCX. Accusoft has also released a 32-bit version of this library. For more information about this control, you can contact Accusoft at (508) 898-2770.

RESOLUTION

There are three requirements for an .OCX to work correctly with Visual FoxPro:

The OCX control must be 32-bit.
A control which supports data binding will not be able to bind to a Visual FoxPro field or table.
Visual FoxPro does not support the ISimpleFrameSite interface. Controls which use this interface may have limited functionality within Visual FoxPro.

STATUS

This behavior is by design.

Additional reference words: 3.00 VFoxWin KBCategory: kbole kbprb KBSubcategory: FxinteropOcx

Keywords          : kb3rdparty FxinteropOcx 
Version           : 3.00
Platform          : WINDOWS