This was the only info I could find on this undocumented issue:
"Using ADO wildcards in the query design grid
Making the necessary adjustments to change DAO wildcards to ADO wildcards may be a simple task, but if you're using ADO wildcards in your code you may prefer to also do so in the query design grid. Although it's undocumented, there is a way to use ADO wildcards in Access 2000's query design grid. Instead of using the Like operator, use ALike. For instance, you could use the criteria
ALike "_r_s__n%"
to replace our previous Kreskin example. The ALike operator works in SQL statements used in code as well, allowing you to easily take advantage of using the query design grid to create SQL statements."
From:
http://msdn.microsoft.com/library/de...ml/ima0601.asp
HTH
mmcdonal