Visual Prolog 7.1 Upgrade Notes

• Upgrading Projects from Visual Prolog 7.1 Build 7100 to the Build 7103
• Upgrading Projects from Visual Prolog 7.0 to Visual Prolog 7.1
• Upgrading Projects from Visual Prolog 6.x to Visual Prolog 7.1
• Upgrading Projects from Visual Prolog 5.x to Visual Prolog 6.3

See also

• Visual Prolog 7.1, Build 7103
• Visual Prolog 7.1, Build 7101
• New Features in Visual Prolog 7.1
• Bugs Fixed in Visual Prolog 7.1

Upgrading Projects from Visual Prolog 7.1 Build 7100 to the Build 7103

1. By default, Visual Prolog 7.1, Build 7103  will replace a previous build of Visual Prolog 7.1 while installation.  The new version will be installed by default to C:\Program Files\Visual Prolog 7.1.
    
2. To make bug fixes and improvements in the Build available, it is recommended to rebuild your projects created by the previous builds of Visual Prolog.
    
3. Visual Prolog 7.1 demo examples included into the distribution, beginning with the Build 7101 are enriched with the examples that were previously provided  for download from www.visual-prolog.com.
   Some other examples were updated in the Build 7101.
   
   By default, the demo examples provided with the Build 7101 and later builds of Visual prolog 7.1 will be installed into the same folder as the examples provided with the Build 7100.
   If you want to preserve your own updates to the examples, provided with the Build 7100, please, install the examples included into the Build 7101  into a different folder.
    

Upgrading Projects from Visual Prolog 7.0 to Visual Prolog 7.1

1. By default, Visual Prolog 7.1, Build 7101 will not replace a previous version of Visual Prolog while installation.  The new version will be installed by default to C:\Program Files\Visual Prolog 7.1.
   You can remove the previous version at any time you want or continue working with both.
    
2. Visual Prolog 7.1 projects are  backward-compatible with Visual Prolog 7.0 projects.
    
3. If you are going to use Visual Prolog 7.1 simultaneously with a previous version of Visual Prolog at the same computer, it is recommended to switch the IDE setting "Open Project at Startup" in the previous version OFF, to prevent opening Visual Prolog 7.1 projects in the earlier IDE.
    
   Note that beginning with Visual Prolog 7.1, projects are not opened at startup, and, hence, the setting "Open Project at Startup" is not necessary any more.
    
4. If you are going to use different versions of Visual Prolog installed at one computer, avoid opening projects by double-clicking on prj6 files.
    
5.  Some changes might require automatic updates in Visual Prolog 7.0 projects.
   Therefore, it is recommended to make the project file (PRJ6) writable before the first build.
    
6. After you open your project in Visual prolog 7.1 IDE, the IDE will fulfill necessary updates.
   
   After this, it is recommended to rebuild the project with the help of the Build | Rebuild All command and answer "Yes to All" to the message "The new module is required to be added into the project".
    
7. The following new keywords have been introduced:
   properties, try, catch, finally, elseif.
   That means that they can no longer be used as identifiers.

8. Beginning with a minor release of Visual Prolog 7.0 Build 7003, the Commercial Edition of Visual Prolog  includes an updated version of the Help generation Tool (PRODOC) that requires Microsoft .NET Framework 2.0 to be installed at a computer.

   If you have installed Visual Prolog at a computer, where Microsoft .NET Framework 2.0 is missed, and want to use PRODOC, you need to do the following:

1. Install Microsoft .NET Framework 2.0.

2. Run MILHTMLParserRegister.exe from the bin directory.

You may ignore this requiring if you do no need PRODOC.

Upgrading Projects from Visual Prolog 6.x to Visual Prolog 7.1

1. Visual Prolog 7.1 projects are not fully backward-compatible with Visual prolog 6.x projects.
   
   Visual Prolog 6.3 and earlier IDE will not allow opening projects modified by Visual Prolog 7.1 IDE.
   
   It is recommended to create a backup copy of your project before opening it by the Visual Prolog 7.0 IDE.
    
2. Some changes require automatic updates in Visual Prolog7.0 projects.
   Therefore, it is recommended to make the project file (PRJ6) writable before the first build.
    
3. After you open your project in Visual prolog 7.1 IDE, the IDE will fulfill necessary updates in the project structure.
   
   After this, rebuild the project with the help of the Build | Rebuild All command and answer "Yes to All" to the message "The new module is required to be added into the project".
    
4. Depending on Visual Prolog 6.x version, you are upgrading your projects from, some additional actions are required.

   See the following web pages fro details:

   • Visual Prolog 7.0 Upgrade Notes
   • Visual Prolog 6.3 Upgrade Notes
   • Visual Prolog 6.2 Upgrade Notes

Upgrading Projects from Visual Prolog 5.x

Prolog Development Center provides the Migration Tool that will assist you to migrate your Visual Prolog 5.x projects into Visual Prolog 6.x projects.

After migrating your projects into Visual Prolog 6.x, follow the recommendations above to upgrade your projects into the latest version of Visual Prolog.