Caché Installation Guide - InterSystems Documentation

Installing Caché on Microsoft Windows
Please reference the Multiple Caché Instances section of the Caché System Administration
Guide for more detailed information.
Installing multiple Caché instances is limited by components where only one exists on a
system. For example, typically there is only one Web server on a system; and as such, CSP
is configured for the last installation. Caché client components stored in the registry encounter
the same issue. The Caché ODBC driver and ActiveX components are stored in the registry
using one name for each. Currently the last installation updates these components to point to
the last instance installed. If you are adding Caché 5.2 to your machine and keeping an older
version running also, run RegFiles.bat in 5.2 to register all the 5.2 components.
Caché makes an effort to move common components to a common directory that can be
shared across Caché instances. Unfortunately, because of backward compatibility issues, not
all Caché 5.2 components support Caché 5.0 and 4.1 instances, and are even less likely to
support Caché 4.0 instances on the same machine.
As a work-around, you can take advantage of a feature Microsoft introduced with Windows
2000 and later. You can force your executable to ignore the registry paths to an executable
by creating an empty file of the same name with .local appended to the executable name.
For example: CObjArch.exe would need an empty file called CObjArch.exe.local to force the
Architect program to look in the current directory for registered ActiveX components, before
using the registry path. By creating these empty .local files, you enable a previous Caché
instance to use the compatible local files, rather than a newly installed Caché 5.2 set of registered
executables.
To create .local files for all the executables in a directory type the following at a DOS prompt:
for %c in (*.exe) do set tempvariable= >%c.local
For more information on .local files see the Microsoft article entitled: The End of DLL Hell.
2.4.2 Change the Caché Language
When you install Caché, all supported language-specific utility DLLs are installed in the
CacheSys\Bin directory. Each DLL contains localized strings and messages.
The format of the name of the DLL is UTILxxx.DLL, where xxx is a 3-letter code that signifies
the following languages:
18 Caché Installation Guide