>>Where can I find information about which merge modules I need to include so
>>the following controls get installed? TIA!
>>
>>MSComCt2.ocx
>>MSComCtl.ocx
>>ComDlg32.ocx
>>MSComm32.ocx
>
>I don't know about actual information, but have you checked out Program Files\Common Files\Microsoft Shared\Merge Modules?

ORCA is the tool you can use to browse merge modules. It was one bitch of tool to find as well. YOu can do a search in MSDN on ORCA.EXE and get information but ZERO help on finding the download location.