When I try to unmap network drive letter mappings using WNetCancelConnection2 (or the depreciated WNetCancelConnection), the thread will block for about 10 seconds before the drive letter is actually unmapped if the file server is unavailable on the network. Is there a faster way to unmap this drive letter if the file server is not (and will not be) available?
Slow to unmap network drive letter
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Set the third parameter
fForcepassed to WNetCancelConnection2 totrue. This should immediately terminate the connection. Please be aware that if there are open files or jobs on the connection you might loose data. So it might be a good idea to use a PING or some other means to establish whether the remote computer in online or not.