The Xceed Component Installer will copy all the necessary files into the library's installation folder (usually in \Program Files\Xceed Components\\Bin\ActiveX) and register the XCEEDSCO.DLL component. The only thing left to do is to create a wrapper class for your MFC projects (assuming you're working with MFC) and make the control available to your VC++ 4.0 projects. To do this, perform the following steps:

• Start Visual C++ 4.0 (developer studio)

• Open your MFC AppWizard application project, or create a new one by selecting the New... menu item from the File menu, and choosing the Project Workspace option. Select MFC AppWizard and follow the Wizards instructions to create the project. Be sure that you select the OLE Controls option for the question What OLE support would you like to include?

Next, if you want to drop the XceedStreamingCompression or XceedRawDataCompression control on a dialog, do this:

• Select the Component... menu item from the Insert menu.

• Select the OLE Controls tab in the Component Gallery dialog.

• The Xceed Streaming Compression control icon appear in the list of controls displayed in the OLE Controls tab in the Component Gallery dialog.

• Select the Xceed Streaming Compression control icon, then click the Insert button in the Component Gallery dialog to insert the control in your project. The Confirm Classes dialog should appear.

• Click OK to close the Confirm Classes dialog.

• Click the Close button to close the Component Gallery dialog.

• The XCEEDSCO.CPP andXCEEDSCO.H files should now be part of your project. You will now be able to instantiate the Xceed Streaming Compression object in your project, and see the Xceed Streaming Compression icon available in your Controls toolbar when designing dialog boxes.

Or, if you want to use create an instance of the controls without requiring a CWnd parent, do this:

• Open the ClassWizard.

• Click the "Add Class" button and select the "From an OLE typelib" option.

• Find and select the "XCEEDSCO.DLL" file. Even if your Visual C++ does not display files ending by "DLL", you can select "All files (*.*)" as the type of files, and then select the "XCEEDSCO.DLL" file.

• Select the "IXceedStreamingCompression" and "IxceedRawDataCompression" interfaces. Visual Studio will generate two files: "XCEEDSCO.CPP" and "XCEEDSCO.H"

• At the place you want to create your instance of XceedStreamingCompression or XceedRawDataCompression, include the "XCEEDSCO.H " file and create a variable of type "IXceedStreamingCompression" or "IXceedRawDataCompression ", and call the "CreateDispatch" method on this variable to actually create the instance behind the wrapper object.

• Finally, when you are finished with your instance, make sure to call the "ReleaseDispatch" method on it.

If the Xceed Streaming Compression control icon does not appear in the list of controls displayed in the OLE Controls tab in the Component Gallery dialog:

• Try reinstalling the Xceed Streaming Compression Library from its installation program. Continue only if that didn't help.

• Select the Customize... button.

• Select the OLE Controls category in the Customize Component Gallery dialog.

• Select the Import... button in the Customize Component Gallery dialog.

• Find and select the XCEEDSCO.DLL file (preferably the one in the Windows System folder that was copied there by the Xceed Streaming Compression Library installation program), then click on the OK button.

• Click the OK button in the Customize Component Gallery dialog.

• The Xceed Streaming Compression control icon should now appear in the list of controls.

The License method must be called to license the library for runtime use. This applies to both registered users as well as users of a time-limited free trial license.