During testing my desktop application is working fine. I packaged the application and ran the exe file and the application still works fine. I also tested on various computers within my department and the application tested successfuly. When I install the application in another area of my company (they have older computers with less software) then I receive an error. The very first function in the application makes an ADO call and the error received is <Operation is not allowed when the object is closed> (Error 3704). I installed a current version of mdac_typ.exe and dcom95.exe on the computer in question and it still didn't work. I installed VB 6 on the computer to debug and after VB 6 was installed the application works. What dll's could the packaging wizard be missing???? Thank you for looking into this.