What really happens when Ctrl Alt Del is pressed?

[Guest Jimmy]

We have an application (specifically Oracle Forms through JInitiator on

I.E.7) which when opened for the first time everything runs really slow. The

response is really bad, e.g. when typing a character it displays on screen

after 2 secs.

Strangely after we press ctrl alt del and then cancel, everything starts

running normally.

We are running on Sunray thin clients with Windows terminal services.

The question is what does really happen when you press ctrl alt del? Why is

ctrl alt del fixing this problem?

Thanks,

Demetris

[Guest John John (MVP)]

Re: What really happens when Ctrl Alt Del is pressed?

 

Jimmy wrote:

> We have an application (specifically Oracle Forms through JInitiator on

> I.E.7) which when opened for the first time everything runs really slow. The

> response is really bad, e.g. when typing a character it displays on screen

> after 2 secs.

> Strangely after we press ctrl alt del and then cancel, everything starts

> running normally.

> We are running on Sunray thin clients with Windows terminal services.

> The question is what does really happen when you press ctrl alt del? Why is

> ctrl alt del fixing this problem?

 

It's called a Secure Attention Sequence, GINA monitors for this event

and it along with Winlogon are responsible for handling SAS events.

 

Interaction Between Winlogon and GINA

http://msdn.microsoft.com/en-us/library/aa376105(VS.85).aspx

 

I don't know why initiating the SAS fixes the problem, you might want to

ask in a server group or in one of the Terminal Services groups.

 

John