Remove Form Definition from One-Offed item

[sublimese]

Is there a way to clear out a form definition in a one-offed item?

For example, we have many one-offed appointments which were created
with a custom form that we no longer use. We would like to convert
these one-offed appointments to regular appointments.

Is there any way to strip off the additional form definition from an
appointment?

Thank you

 

[Ken Slovak - [MVP - Outlook]]

Please do not multipost. Place each group you want copied on one post into
the To field of your post.

You need to delete a host of undocumented properties, and you have to do it
using a low level API such as CDO 1.21, Extended MAPI or Redemption. I'm not
sure if you can do it with PropertyAccessor in Outlook 2007,
PropertyAccessor restricts you from deleting any properties MS decided are
necessary for Outlook's business logic but hasn't released a list of those
properties.

Using Redemption code and VB this is what you'd have to do. This code
snippet doesn't show all the declarations and code to get to every message
in the folder, objMessage is an Redemption.RDOMail item:

Const strPropsetGUID As String = "{00062008-0000-0000-C000-000000000046}"

With objMessage
lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H8540) Or
PT_BINARY
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H8541) Or
PT_BINARY
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H8542) Or PT_LONG
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H850F) Or
PT_BINARY
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H851B) Or
PT_BINARY
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H8510) Or PT_LONG
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H8513) Or
PT_BINARY
.Fields(lngTag) = Empty

lngTag = objFolder.GetIDsFromNames(strPropsetGUID, &H8514) Or
PT_BOOLEAN
.Fields(lngTag) = Empty

' save the changes
.Save
End With