impersonation for active directory userid fails

[Guest Anthony LaMark]

Hi,

 

Is there a particular property/permission I need to assign to a userid

within active directory so that I can user impersonation? I ran into a

situation where one particular userid cannot be impersonated but this

program has been successfully doing impersonation for quite some time. The

LastError message is Logon failed but when I login manually using the userid

on this particular machine it is able to login. This leads me to believe

there is a local security setting or an AD setting that is preventing me

from impersonating. I hope this email makes sense :-). Thanks in advance.