reference problem

[Ashraf Fathy]

hiii i made a dll to check on hdd serial number on application start,but if earase this dll the program just give an error but i can press continue so it will work normaly, i use try-catch when i define an object of that reference, but it always give me unhadled exception i want to this in case the user erease that file i don't want the program to run:omg:

[Dave Kreskowiak]

Are you getting this Continue because your running a debug version of your code in the debugger? Try running a Release compiled version outside the development environment. Also, are you trying to handle specific exceptions in your try/catch block? Just use a catch block like this:

Try
...some code that might fail...
Catch ex As Exception
...exception handling code...
Finally
...If you need to run code that must run in all cases...
End Try

RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

[Ashraf Fathy]

not working....i think when i try to call a reference not exist it not look to the try catch... Try Dim any_name As New reference1.class1 Catch ex As Exception MessageBox.Show("error") End Try when the reference1 is not aviliable it gives me the default error, not my custom error on the catch :confused::confused:

[Dave Kreskowiak]

I don't think your going to be able to do what you want. When the reference is being bound to the .DLL, the file is missing? This would be a catastrophics failure (I think!)you can not catch. I take it this is part of a copy protection scheme? RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

[Ashraf Fathy]

i think i found some solution, if i made my call into a sub, then i call that sub between try and catch ;):)

[Dave Kreskowiak]

Apparently, I had my head somewhere it should not have been. I think you looking at this:

Dim myFunction As myNamespace.myClass
Try
myFunction(myParameters)
Catch
' Call failed code goes here...
End Try

RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome