custom form cannot be found. Outlook uses an outlook form instead

[WLAN]

Hi,

I'm working on an e-mail archiving software. Our software stores e-mails
from outlook into our repository.

Later user can view these stored messages from repository using our
standalone application. In our standalone application, if user double clicks
a stored message,it should be open in explorer window.

But when I open some messages,initially it is showing the below message 'The
custom from cannot be found. Outlook uses an Outlook form instead. please
contact administrator".

When I click OK button in this warning message, mail gets opened in
inspector window. This is happening only for certain messages. I think
outlook is throwing this warning message.

I tried to clean frmcache.dat also. After that outlook displays messages
using a different form.

Is there any MAPI property which specifies custom form or something like
that? how do I find out why this is happening for some messages and not for
others?

Thanks in Advance

 

[Ken Slovak - [MVP - Outlook]]

The MessageClass is the best thing to check. Any custom form created using
an OFT file will have a custom MessageClass. If these are email items it
will be "IPM.Note.xxx" where "xxx" is the custom part of the MessageClass.
To open items with that custom MessageClass the custom form must be
available as a published form wherever that form is being opened. If it is
not available the form will be opened using the standard form for that type
of item.

 

[WLAN]

Thanks Ken.

I found the issue and it's fixed now