Notes on using SQL/R on Windows Vista
-------------------------------------

SQL/R A.02.77 and newer have been tested on Windows Vista. Previous versions
are expected to work but have not been tested explicitly.

Please note that Windows Vista by default protects all files and directories
below the Program Files directory. Even if logged-on as administrator it is
not possible to use a text editor such as Notepad to edit files below the
Program Files directory. Depending on which editor program is used, Windows
Vista either displays a "permission denied" error message or "virtualizes"
the file (i.e., redirects it into a subdirectory below the user-specific
%LOCALAPPDATA%\VirtualStore directory).

This affects SQL/R because by default the SQL/R configuration files are
located in the "Marxmeier\SQLR\etc" subdirectory below the Program Files
directory. As a consequence it is no longer possible to edit the SQL/R
configuration files, even if logged-on as administrator, without using
cumbersome workarounds such as editing the files in a different directory
and then copying them back.

Starting with SQL/R A.02.77, the SQL/R installation program solves these
problems by creating a local Windows group named "SQLR Administrators".
The user who installs SQL/R is then made a member of this group.

The "SQLR Administrators" group has modify/delete permissions on the SQL/R
configuration subdirectory (by default C:\Program Files\Marxmeier\SQLR\etc)
and all contained files. It also has modify/delete permissions on the
sqlrodbc.ini file located in the Windows directory.

This enables all members of the "SQLR Administrators" group to edit the
SQL/R configuration files without restrictions.

Please note:

If SQL/R is installed on Vista for the first time, after the installation
program has finished it is required to log-off and log-on so that the new
"SQLR Administrators" group membership becomes effective.

If additional users should be able to modify the SQL/R configuration, just
add them to the local "SQLR Administrators" group. To do this:

1) Open the Computer Management Console

   From the Start Menu, navigate to:
     Control Panel -> Administrative Tools -> Computer Management

   Alternatively, from the start menu, open:
     All Programs -> Accessories -> Run
   Then enter "compmgmt.msc" and click OK.

2) In the left pane, choose Local Users and Groups -> Groups

3) In the right pane, locate the "SQLR Administrators" group and open its
   properties with a doubleclick. The properties dialog allows to change
   the group's list of members.

In case these users are currently logged-on they should then log-off and
log-on to activate the new group membership.