Microsoft.VisualBasic.ApplicationServices.CantStartSingleInstanceExcep tion

[ADO DOT NET]

Hi,

I want to catch CantStartSingleInstanceException exception.

But I don't know where should I do this?

It's not in form load.

Because no code will cause this exception to occur.

Anyone able to help me please?

Thanks.

[PlausiblyDamp]

Can they be caught in the UnhandledExceptionEvent?

[ADO DOT NET]

No, it does not work.

You know, if you simply create a single instance application and run it, then run another instance, if you have some firewall like ZoneAlarm and it blocks the access of 2nd instance, this error occurs.

I tested but could not catch it in the UnhandledExceptionEvent

[PlausiblyDamp]

If you don't handle this exception does your application crash? In other words are you sure it is getting raised (I'm only asking because my setup here doesn't have a local firewall so I can't force this to happen and there is no way I'm installing ZoneAlarm on a working pc just to try this out ;)).

[ADO DOT NET]

Dear PlausiblyDamp,

thanks for taking the time to help me:)

I have snapshots of the problem here.

If I press debug, I will see that CantStartSingleInstanceException occurred.

I can find the related page on MSDN:

 

http://msdn2.microsoft.com/en-us/library/microsoft.visualbasic.applicationservices.cantstartsingleinstanceexception.aspx

 

But this page does not have a sample on how to use it and I really am confused how and where to catch this exception?

 

Also, Merry Christmas :D

[ADO DOT NET]

I forget them!

[PlausiblyDamp]

If you hit debug does the call stack show where the exception was raised?

[ADO DOT NET]

Nothing! :(

I don't know what to do :(

Please help meeeeee :((