How do I convert a path with a drive letter to a UNC path

Question

How do I convert a path with a drive letter like W:\Path\Share to the equivalent unc path like \\server\Share\File in .Net?

At the command prompt you can run net use and that will list the mappings. How do I get at that info in .Net?

Answer 1

You can use P/Invoke and call on a native function such as WNetGetUniversalName.

Answer 2

To get a list of the shared folders on the current machine in .NET you have to options:

• Querying the Win32_share WMI class using the classes in the System.Management namespace
• Invoking the NetShareEnum function in Win32 using P/Invoke

Note that the calling process will have run in the context of a user with administrative privileges for this to work.

Answer 3

To answer your question about net use here is a good solution Get UNC Path for Mapped Drive VB.net

I like the net use way.