I'm not sure if Jet 4.0 is correctly installed

[Emmanuel Thiry]

Hi,
I made a program with Visual C++ 6 and MFC that uses mdb files with Jet 4.0
through DAO. It works on well my XP Machine (name "A"). It works even on
fresh installs of Windows 2000 or XP where I never installed development
tools nor anything such as MDAC, Jet ou DAOSDK.
But on one of my XP machine (name "B") my program no longer works. I
realised that the programm crashes when I attempts to read or to create a
mdb file.
I monitored the files my program accesses with Filemon.exe and noticed an
interresting fact. On B, according to Filemon, my program never tries to
access msjet40.dll whereas on A it does.
On B the following code fails miserably :
AfxDaoInit();
DAODBEngine* pDBEngine = AfxDaoGetEngine( );
if ( !pDBEngine )
{
AfxMessageBox("You have no DAO installed", MB_ICONSTOP|MB_OK);
return FALSE;
}
but it works well on A.
Please note that the file msjet40.dll do exist on B.
I suppose that B lacks some part of DAO.

Should I install something or write some registry values ?
Do you know how I can make my program work again ?

Thanks,
Manu

[Emmanuel Thiry]

Problem solved : dao360 was present but unregistered
needed to do "regsvr32 dao360dll"

Manu