while synchronizing error is coming

[hemaneelagiri via OfficeKB.com]

hi
i am developing an application in that i have contacts. i am synchronizing
the data with my database to my outlook contacts.
i am using below code
_____________________________________
Microsoft.Office.Interop.Outlook.ContactItem contactItem= (Microsoft.Office.
Interop.Outlook.ContactItem)fldContacts.Items.Add(Microsoft.Office.Interop.
Outlook.OlItemType.olContactItem);

contactItem.CustomerID = ((int)objType).ToString() + "_" + dr["AddresseId"].
ToString().Trim();
contactItem.FirstName = dr["FirstName"].ToString();ontactItem.Gender =
Microsoft.Office.Interop.Outlook.OlGender.olMale;
contactItem.Email1Address = dt.Rows["CommValue"].ToString();
contactItem.Categories = contactItem.Categories + ";" + "my new";
contactItem.Save();
__________________________________

except one system it is working fine in all other systems.
and bellow erroe is coming in that system

"Unable to cast COM object of type 'System._ComObject' to interface type
'Microsoft.Office.Interop.Outlook._ContactItem'. This Operation failed
because the queryinterface call on the COM Component for the interface with
IID'{00063021-0000-0000-C000-000000000046}' failed due to the follwing error.
No such interface suported(Exception from HRESULT.0x80004002(E_NOINTERFACE)).
"

we are not able find why it si coming

please help

 

[Ken Slovak - [MVP - Outlook]]

If it works everywhere but on one machine you're going to have to do
detective work to see what's different on that machine. Disable all addin
code, any synch software and check for dependencies and requirements for you
code. See if it runs then.

It's going to be a process of elimination.

 

[hemaneelagiri via OfficeKB.com]

not only one miachine it is coming randomly.. after it came teh outlook is
not working and after system restarting it is working.. and code also working.

 

[Ken Slovak - [MVP - Outlook]]

Again, you're going to have to do the detective work on this. No one can
remotely debug an intermittent error or one that occurs on one or only a few
machines.