Outlook messenger v4 problem

When i login to a lacal administrator account the outlook messenger is working without any problem. If i login with domain user or domain administrator account, the outlook starts showing problem{Unable to register the DLL/OCX: DllRegisterServer failed; code 0x80004005.Unspecified error} like chat users are not visible in chat list and chat,group,remote,voice options are not working. This problem is showing in a particular machine,rest of all machine outlook is working perfectly in domain user account.