Why can't I access a file in Network driver from Windows Service?

[Daniel Xiao]

I write a program accessing files in network drive o:. It is doable as a
standalone application. However, if it is running under windows service,
the following exception will appear:

13/07/2004 10:24:48 AM run() error: System.IO.IOException: The specified
network password is not correct.

at System.IO.__Error.WinIOError(Int32 errorCode, String str)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess
access, FileShare share, Int32 bufferSize, Boolean useAsync, String
msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess
access, FileShare share)
at dump_tool.Dump_Load.run()


The source codes relevant are:

Cur_Fs = File.Open( Cur_File, FileMode.Open, FileAccess.Read,
FileShare.Read );

Where Cur_File = "o:\jul04\10\fares.fl", o: is a mapped network drive.







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[Nick Malik]

Normally, when you run as a service, you are running as the 'local system'
account, which has no access rights for network resources. Create or use a
known domain account, and in the service settings, set the identity of the
service to this account.

--- Nick