Error message when opening a custom form

[TWsyMw]

Hi

I have an absence custom form in Outlook 2003. This form will be installed

by an add-In. It is visible at the appointment definition form. When i open

the form i get an error message "Error displaying the fields of the absence:

Invalid class string"

The form has as content an ActiveX control that set a few user properties at

the appointment.

At the environment where I have the problem is a special behavior(Perhaps it

has something to do with the problem). When I open the form Designer

Extras->Forms->Design a form select the "Lib for personal forms" and open my

form, i get a popup that wants an password.

In my opinion it has something to do with the security. Does anyone has a

hint for me, to solve this problem?

Regards Thomas

 

[Ken Slovak - [MVP - Outlook]]

A password protected form only works when in design mode, it never affects

run mode. Passwords are deprecated for Outlook 2007, they never did much

good anyway. You can always get the password of a form from its

FormDescription.Password property, which is in clear text.

It's more likely that the ActiveX control isn't being installed or isn't

being registered or is not correctly initialized, or just isn't a control

that works well when embedded within a form. Analyze the error message, what

class strings are being set, or are used to call the ActiveX control, are

they correct?

"Mk23" <Mk23> wrote in message

news:BC8B2F54-1EB3-4F32-80ED-E5BE8FBAA4C4@microsoft.com...
> Hi

> I have an absence custom form in Outlook 2003. This form will be installed
> by an add-In. It is visible at the appointment definition form. When i
> open
> the form i get an error message "Error displaying the fields of the
> absence:
> Invalid class string"

> The form has as content an ActiveX control that set a few user properties
> at
> the appointment.
> At the environment where I have the problem is a special behavior(Perhaps
> it
> has something to do with the problem). When I open the form Designer
> Extras->Forms->Design a form select the "Lib for personal forms" and open
> my
> form, i get a popup that wants an password.

> In my opinion it has something to do with the security. Does anyone has a
> hint for me, to solve this problem?

> Regards Thomas

 

[Mk23]

Hi Ken

Thank for your answer.

The form I created myself and i didn't set a password. But there is now a

password required. I have this problem on only one custom pc, all the other

at the customer work correctly.

How and where do I look, that everything is correct with my ActiveX control?

Regards

Thomas

 

[Ken Slovak - [MVP - Outlook]]

Not having any idea about your ActiveX control I can't answer that. You need

to look at the instructions for that control on how to deploy the control

and how to license the deployment. I don't know if that control supports or

requires a password, so that's something else to check out.

A form password can be easily cracked if that's the problem, then you'd have

to find out who added the password and why. Since that's design time

protection it would imply that someone was customizing the form or modifying

it in some way.

"Mk23" <Mk23> wrote in message

news:45275DE2-8149-48ED-8BB5-839B27BB5195@microsoft.com...
> Hi Ken

> Thank for your answer.

> The form I created myself and i didn't set a password. But there is now a
> password required. I have this problem on only one custom pc, all the
> other
> at the customer work correctly.
> How and where do I look, that everything is correct with my ActiveX
> control?

> Regards
> Thomas