Installation and Configuration > Upgrading Dialog Designer > If Maintaining a 4.1 Environment Is Necessary
	If Maintaining a 4.1 Environment Is Necessary

If it is necessary to keep a Dialog Designer 4.1 environment (for example, to continue maintenance of 4.1-based applications), Dialog Designer 5.0 can be installed into a separate directory.

In this case, the following considerations should be reviewed:

1. Preserve the Dialog Designer 4.1 and Eclipse 3.2 (or 3.3) installation and workspace. Dialog Designer 4.1 will continue to use the previous Tomcat installation.

2. Install Dialog Designer 5.0, and Tomcat 5.5 or 6.0 (Tomcat upgrade is optional) to a separate location (for example, C:\DD5.0\)

• (Tomcat can also be installed under the Dialog Designer 5.0 installation location to keep it separate.)

3. To upgrade a Dialog Designer 4.1 application to Dialog Designer 5.0:

• Copy the project from the Dialog Designer 4.1 workspace to the Dialog Designer 5.0 workspace.

• Keep a copy in the 4.1 workspace to ensure that you have a backup in case of upgrade problems.

• Import the copied project into Dialog Designer 5.0. The project will be converted for Dialog Designer 5.0. This project can no longer be opened in Dialog Designer 4.1.

4. If you use a source control system, store the 5.0 application in a different location (or a different branch) so that the old 4.1 application can be maintained in the future.

Following are example (recommended) installation paths for multiple Dialog Designer/Eclipse versions. (base) means any parent directory.

• c:\(base)\DD4.1\

• eclipse\ (Eclipse 3.2 or 3.3 install, with GEF 3.2 or 3.3 and Dialog Designer  4.1 features)

• tomcat\ (Tomcat 5.0 or 5.5 for running Dialog Designer 4.1 applications

• workspace\ (Dialog Designer 4.1 projects)

• c:\(base)\DD5.0\

• eclipse\ (Eclipse 3.3 or 3.4 install, with GEF 3.3 or 3.4 respectively, and   Dialog Designer 5.0 features)

• tomcat\ (Tomcat 5.5 or 6.0 for running Dialog Designer 5.0 applications)

• workspace\ (Dialog Designer 5.0 projects)

This is a convenient installation structure that keeps the Dialog Designer 4.1 and Dialog Designer 5.0 environments and prerequisite software separate.

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