I am doing modifications to inhouse applications developed in VB. After releasing, some users got an unspecified error. We noticed that all users with the error had an OS older than XP or had 2000 woth SP4 which is XP-compliant. We tried compiling the code on another programmers PC that had Office 200 with only SP1 and it got a compile error on Dim Conn As ADODB.Connection that the library was not found. Any ideas?