System.IO.File.Copy(..,..) doesn't really work (WinApp) -- dotnet security

dotnet security : System.IO.File.Copy(..,..) doesn't really work (WinApp)

gotchafighter NO[at]SPAM gmx.de
9/8/2004 11:19:43 AM

1. signed assembly with a StrongName
2. Caspol -m -af MyUpdServ.exe

Following Code functioned:

File.Copy(@"\\SERVER01\MyApp\MyApp.exe", @"C:\Programme\MyApp\MyApp.exe", true);

Following Code not functioned:

File.Copy(@"\\SERVER01\MyApp\MyApp.xml", @"C:\Programme\MyApp\MyApp.xml", true);

-> here was throw a System.UnauthorizedAccessException

Toby Herring
9/8/2004 2:34:31 PM

Sounds like you don't have permission to read the XML file.

Either that, or the XML file already exists at the target destination, but
it's either locked by an application or you don't have permission to modify
it.

--
Toby Herring
MCDBA, MCSD, MCP+SB
Need a Second Life?
http://secondlife.com/ss/?u=03e0e5b303c234bf08e80ee40119a65e

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shawnfa NO[at]SPAM online.microsoft.com (
9/8/2004 11:41:38 PM

I'd agree with that assesment. It's important to realize that CAS security sits on top of NT security, and does not replace it. Even if the CLR will
allow you to read or write a file (ie you have the correct FileIO permissions), ACLs on the NTFS (or ACLs on the file share you're writing to) may still
prevent the access.

-Shawn
http://blogs.msdn.com/shawnfa

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