Before you install Enterprise Portal, you must:
Verify that you have write permission on the directory where you install the software, and the x:\tmp\logs directory (where x: is the installation drive).
Verify that you have 592MB free space in your temporary directory, otherwise the installation fails.
If you do not have enough space in the default temporary directory set by the installer, set the environment variable to redirect to a temporary directory set by you.
The temporary directory to which you are redirecting
must exist before you set the environment variable.
To redirect your temporary directory, from a DOS command prompt window, enter:
EPSetup -is:tempdir c:\temp
where c:\temp is the directory of your choice.