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Home Page Software Inc.      Webster Pro Control Versions:
     Which to use?

The Webster Pro DLL (E-Type) is now available. Same functionality, no OLE!

All versions can be installed on a system at the same time.

All versions expose the same properties, methods and events.

The ActiveX controls are easily interchangeable in your application without code changes.

The 32-bit controls can run on any 32-bit Windows system: Windows 95, Windows 98, NT 3.51, NT 4.0 and Windows 2000.

The 16-bit OCX (ActiveX) control can run on Windows 3.1 and up. It can be used in VC++ 1.5, VB4-16, Delphi-16 and other OCX-aware 16-bit development environments.

Beginning with V3.0, the Webster Pro Control is available in three functionally identical versions. Two are 32-bit ActiveX (OCX) controls and one is a 16-bit ActiveX control.

If you are not sure of which version to use then the S-Type is probably your best choice to start with. It does not utilize the MFC support DLLs (MFC42.DLL and MSVCRT.DLL) and so is the easiest version to redistribute and install. You can always switch to a D-Type later if you decide to distribute the support DLLs with your application.

The D-Type 32-bit ActiveX control WebPr332.OCX is dynamically linked with the MFC runtime support DLLs and must be redistributed together with MFC42.DLL and MSVCRT.DLL. This is the same as previous 32-bit versions of the control and requires no change to existing installation procedures.

Use this version if:

  • You must redistribute MFC42.DLL and MSVCRT.DLL because they are required by your VC++ application or by other controls that are distributed with your application.
The S-Type 32-bit ActiveX control WebPro3.OCX is statically linked and does not require the redistribution of MFC42.DLL and MSVCRT.DLL.

Use this version if:

  • You do not need to redistribute MFC42.DLL and MSVCRT.DLL on behalf of your application or other controls.
The 16-bit D-Type ActiveX control WebPr316.OCX is dynamically linked with the 16-bit MFC runtime support DLLs. This is the same as previous 16-bit versions of the control and requires no change to existing installation procedures.

Use this version if:

  • You use a 16-bit development environment (e.g. VC++ 1.5, VB4-16, or Delphi-16) to build applications for Windows 3.1.

This table compares the redistributable sizes of the three 32-bit control types:
D-Type S-Type E-Type
Control size: 1.00 MB 1.26 MB 1.00 MB
MFC Support DLL size: 1.22 MB Not used. Not used.
Total Size: 2.22 MB 1.26 MB 1.00 MB
Typical compressed size: 970 KB 478 KB 396 KB


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