Updating from previous Versions

Web Connection is updated frequently and so you'll often have to update an existing installation with the core files from a new version. This topic refers to same version updates (ie. 6.10 -> 6.15 for example).

Updating from the Shareware Version

If you are updating from the Shareware version or you had previously installed the Shareware version, or you have already installed and are seeing shareware version prompts, please see Updating from the Shareware Version.

To ensure you are running the registered version, check the \classes folder in the Web Connection installation and see that there are lots of PRG files in that folder. The full version comes with source code, while the shareware version uses wconnect.app to load dependencies. For the full version:

  • Delete wconnect.app if it exists
  • Make sure wconnect.h has #DEFINE SHAREWARE .F.

To update an existing installation with the new Web Connection installation you can install the new version on top of the old one. Simply unzip the new files into your old installation directory.

Note that if you've modified any of the samples files, or any of the framework files you won't want to update the existing installation or at least make sure you do a backup prior to installation of the new version. In general doing a back up of the old install is probably a good idea.

After you've installed the new files over the existing installation, make sure you:

  • Delete all FXP files in the project directories
  • Recompile all PRG and VCX files
  • Update DLLs in production apps
  • Update the Web specific files (DLLs, Scripts,CSS)


To recompile all code files to the latest version is necessary to ensure that both the FXP files as well as your project is recompiled. You can do the following from the VFP Command Window in the Web Connection startup directory:

DELETE FILE classes\*.fxp
COMPILE classes\*.prg

You can also use:

DO CompileWC()  && in '\tools' folder

Update DLLs in Production Apps

Web Connection uses a number of DLL files that are distributed in the Web Connection root folder. These files are required in deployed applications and should match the versions that you are running during development.

Make Backups before Updating

Always back up or commit your current application's changes to source control before updating files so you can roll back or copy the old files if necessary.

The DLLs in questions include:

Core Dependencies

  • wwIPstuff.dll
  • wwDotnetBridge.dll
  • Newtonsoft.Json.dll
  • zlib1.dll

General Purpose

  • dzip.dll, dunzip.dll
  • wwImaging.dll

.NET Interop

  • Markdig.dll
  • Renci.SshNet.dll

Of these files wwIPStuff.dll, wwDotnetBridge.dll and zlib1.dll are core dependencies that have to be present as they are used internally in Web Connection.

Newtonsoft.Json.dll is required for all JSON related operations including the wwJsonSerializer, REST Services, wwJsonServiceClient and anything else your code might use to parse JSON.

The remainder of files are specific use cases but I recommend you copy and update them nevertheless.

We recommend you copy all the DLLs from the Web Connection install folder to your live application deploy folder. You can also use the build.bat file in Web Connection projects to create a Build folder that includes your binary files along with the Web Connection required dlls in the \deploy folder.

Copy Web Support Files

You'll also want to update your Web directory support files that provide support images and JavaScript files for the current version. These files should be updated in the Web folder of each application.

The first things to update are the Web Connection Connector Module Files

  • .\bin\webconnectionModule.dll
  • .\bin\wc.dll

Next update scripts, css and Page Templates (selectively):

To do this copy the following:

  • templates\ProjectTemplate\Web\lib -> Web Dir\lib
  • templates\ProjectTemplate\Web\scripts -> Web Dir\scripts
  • templates\ProjectTemplate\Web\css -> Web Dir\css
  • templates\ProjectTemplate\Web\admin -> Web Dir\admin

In addition you should probably also update the stock View Templates in the Views folder:

  • templates\ProjectTemplate\Web\Views -> Web Dir\Views

But be careful here, since it's very likely that you may have modified the templates in these folders.

Important: Always create a backup first and then use a comparison tool like Beyond Compare or WinMerge to check for changes when in doubt.

Important: If you've modified any of the files, they will be overwritten. Especially make sure that you rename application.css in your application to something that is specific to your own application or only overrides styles in application.css.

Update Project Generated Files

When you create a new project Web Connection generates a number of files which is a one time process. These files are generated from templates and these templates occasionally change, so from time to time it's a good idea to check and see what has changed.

A good recommendation if you would like to update these files is:

If you have older projects and you want to update to the latest support files I recommend:

  • Create a new project into a new folder
  • Use BeyondCompare or similar to compare files

You'll want to compare at the following files:

  • build.bat
  • install-iis-features.ps1
  • deploy\bld_YourApp.prg
  • deploy\yourApp_serverConfig.prg
  • deploy\yourAppMain.prg

In addition you'll probably want to update your web\lib folder if there are changes.

© West Wind Technologies, 1996-2019 • Updated: 03/12/19
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