> Before Installing
> Before you begin to install the software, do these items first:

> ● | Read the Compatibility With Previous Versions section of the TIBCO Enterprise Message Service Release Notes.

> ● | Read the README file for your platform. There is a README file for each platform, located on the TIBCO download site and on the product distribution, in the same directory as the installation files.

> ● | Read the TIBCO Software Inc. License Agreement included with the product.

> ● | Read the appropriate chapters for your platforms.

> If you are upgrading TIBCO Enterprise Message Service, or reinstalling a clean version of the software, you may uninstall the product first or let the installer take care of performing the upgrade or reinstall.
> Installer Account
> UNIX
> To install TIBCO EMS, you can login either as a regular (non-root) user or as super-user (root).
> A graphic environment such as CDE or X Windows is required to run the installer in GUI mode.

> | For information about installing on UNIX systems, see DISPLAY Variable FAQ.

> Microsoft Windows
> You must have administrator privileges to install TIBCO Enterprise Message Service. If you do not have administrator privileges, the installer exits. You must then log out of the system and log in as a user with the required privileges, or request your system administrator to assign privileges to your account.
> If you intend to install the product on a network drive, you must ensure that the account used for installation has permission to access the network drive.
> Installer Log File
> The installer writes its log file to the User_Home/.TIBCO directory. For example, on Windows, the installer writes its log to the C:\Documents and Settings\user-name\.TIBCO directory.
> Installation Registry
> The installer maintains an installation registry. The registry location depends on the platform. This section explains where the registry files are located. The file names include the prefix vpd, which stands for Vital Product Database.

> | Do not edit, modify, rename, move, or remove any of the registry vpd files.

> UNIX Platforms
> If installation is performed by a regular user (non-root), the installation registry is maintained in the following files in the user's home directory:
> $HOME /INSTALLSHIELD
> If installation is performed by super-user (root), the installation registry is maintained as follows:

> ● | On Solaris and HP-UX, in the root user's home directory (which is /) as vpd files.

> ● | On Linux, in the /root directory as vpd files.

> ● | On AIX, in the /usr/lib/objrepos directory as vpd files.

> Microsoft Windows Platforms
> On Windows platforms, the installation registry is maintained in the %CommonProgramFiles% folder:
> %CommonProgramFiles%\Installshield

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