>>I have build a small ActiveX Server (.EXE) just to learn how it work.
>>
>>When the .EXE is on my hard disk, CreateObject() work fine. But, when I put
>>the .EXE on another computer, CreateObject() return "Server execution failed".
>Have you registered the server with REGSVR32.EXE?

And CliReg32? There's a lot of info out there on TechNet and MSDN, and it's hard to pull it all together. :-(