Unable to add a new user on xp machine

I am attempting to add a new user through users in control panel. When I click to open (or rt cl to open)nothing happens.I went to control panel computer management, local users and groups , and attempt to add a new user there. I get the error message: "An error occurred attempting to create the object picker."
                                    %1 is not a valid win32 application.


What might I do to rectify the situation?
Help-DeskAsked:
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David-HowardCommented:
Hello Help-Desk,
Please access the link below for a possible solution. :-)
http://hidev.com/knowledge/category.asp?a=4&q=95

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Windows XP

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