USB Write Protected

[psycho-j]

I have a service that labels a USB Device upon detection but cannot get it to stop trying to write when USB is "locked / write protected". This causes a system hang. I would love some help with this.

Thankx in advance

 

[DiskJunky]

how are you doing the write? I'd presume that you have code in a Try/Catch block?

 

[Errods]

How Did you do that cause i am trying to do an application which uld Write protect an USB drive. Can you help me in How to detect the USB device when plugged in.......

Atleas Refer me to some good websites giving more information on this topic............

 

[DiskJunky]

well I was guessing that in your code you had something like the following;

Try
     'code to write the file
Catch ex as IOException
     'this will happen if there is a lock on the file or if the file cannot be written for some other reason check the 'ex' variable for more info
End Try

As for detecting when a device is plugged in, a quick google search found the following;
http://www.thescripts.com/forum/thread348267.html
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=948315&SiteID=1

 

[JuggaloBrotha]

To expand on DiskJunky's post, the Try/Catch blocks can have multiple Catch statements.

Try
     'code to write the file
Catch exIO as IOException
     'this will happen if there is a lock on the file or if the file cannot be written for some other reason check the 'exIO' variable for more info

Catch ex As Exception
  'this will happen if there's a problem that's not an IOException and when you use multiple catch statements, always put this one last (as a fail safe)
End Try