>>I have a public variable that I use to store my connection handle for SQL Passthrough. The variable is used in a number of forms, and was working fine until I came to a form that is telling me "Connection Handle is invalid."
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>>Why wouldn't the connection handle work for a particular form? I have checked to make sure that the variable does actually contain a valid handle, but for some reason, this one form won't use it. Can anyone explain this?
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>>Thanks!
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>Is the form using a private data session? Just a WAG that this might cause a problem.

The form is using a private datasession, but so are all the other forms that actually work with the connection handle variable.