Pipes won't work with limited accounts

I am using Named Pipes to commmunicate between a Windows Service and one or more client applications (depending on the number of users logged in).

Everything works fine if the client app runs under a user with administrator rights.

When it runs under a limited user account I get the ERROR_ACCESS_DENIED message when the client is trying to connect to the Pipe Server (created by the service).

This is the code section generating the error message:

hPipe =Win32API.CreateFile(

pipeName,// pipe name

GENERIC_READ |// read and write access

0,// no sharing

IntPtr.Zero,// default security attributes

OPEN_EXISTING,// opens existing pipe

0,// default attributes

IntPtr.Zero);

I suspect that I have to supply a structure to thelpSecurityAttributesargument specifying a security descriptor, but I don't know how that would look like in code.

Can someone shed some light on this issue? Preferably with a short example in code.

Thanks

[1601 byte] By [MatchBrace] at [2007-12-29]