> A particular COM interface isn't registered in your system. You need to figure out exactly which one and then use this: > > > > > > to register it. > > > > When you attempt to save, does it generate any .text format versions for any of your forms? I am having the same problem and yes it generates a .text format: ``` Line 27: Class MSWinsockLib.Winsock of control Socket was not a loaded control class. Line 35: Class TabDlg.SSTab of control SSTab1 was not a loaded control class. Line 223: Class MSComctlLib.ListView of control lvwInfo was not a loaded control class. ```