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by pjc50
3070 days ago
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Windows executables are opened with mandatory exclusive locking. So you can't overwrite a program or its DLLs while any instances of it are running. If a DLL is widely used, that makes it essentially impossible to update while the system is in use. There is a registry key which allows an update to schedule a set of rename operations on boot to drop in replacement file(s). https://blogs.technet.microsoft.com/brad_rutkowski/2007/06/2... |
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This is not always correct; see: https://news.ycombinator.com/item?id=16256483