I have a vb6 database project using dao. In the project I have a find routine that finds a record based upon a users choice from a list box. This feature uses an api call (sendmessages). The problem is that while running under vb6 on an nt4 box everything runs properly and when I run the same project again under vb6 on a laptop running win98 again everything works just fine but when I package the project and do an install on a clean nt4 or win 98 box I receive an error (invalid procedure or call) every time the find feature is used. Any ideas where I should look for the error?