Hi Bruce,

Then maybe something like:

SET OutlookExpDir=%ProgramFiles%\Outlook Express
SET ErrorDescr=Directory %OutlookExpDir% not found
IF NOT EXIST "%OutlookExpDir%" GOTO Error

:Error
ECHO.
ECHO The process encountered at least one error:
ECHO.%ErrorDescr%
ECHO The batch process has aborted.

or

SET ArchiveDir=%ProgramFiles%\OutlookUninstArchive
IF NOT EXIST "%ArchiveDir%" MD "%ArchiveDir%"
SET ErrorDescr=Directory %ArchiveDir% could not be created
IF NOT EXIST "%ArchiveDir%" GOTO Error

:Error
ECHO.
ECHO The process encountered at least one error:
ECHO.%ErrorDescr%
ECHO The batch process has aborted.

>>The problem is that NT, 2K, and XP all have the same value for %OS%:
>>Try the below .bat file:
>>

>>set ostype=DOS
>>IF %OS%==Windows_NT SET ostype=WinNT
>>set
>>

>>You might try here:
>>
>>http://www.robvanderwoude.com/index.html
>>
>>Cool examples anyway...
>
>Thanks Tracy, for the code & link. I'm home with no NT now, but the BAT I created with your code ran fine on XP.
>
>This shows up with the SET command, which also has a whole bunch of other info that might be usable.
>
>In fact, maybe I'm going about this the hard way. All I really need is one distinguishing feature to check for (a certain folder or file, e.g.) common to NT only (or XP only), and then the default install (the "else") would be the other OS.
>
>That'll be my fallback position, but first I'm gonna read through the link, see what I might find there. Thanks!