Unter Win 95 und Win NT arbeiten GetDriveType verschieden:
There are three problems with the
GetDeviceType API: (1) if you have a path which contains a file name, it returns the error code
DRIVE_NO_ROOT_DIR; (2) it works differently on Windows NT and Windows 95; (3) if you pass it a string
that contains a name like "\.d" it does not recognize the local drive. This code fixes these problems. It strips
back the name until it has either a drive letter (C:, for example), or a network path name (\ prefix). It discards any
file name portion. It also handles paths that do not contain a drive or UNC name. The program knows how to
compensate for the fact that Windows 95 and Windows NT _splitpath parse differently.
GetDriveType("C:") returns DRIVE_FIXED on NT 4.0 and DRIVE_NO_ROOT_DIR on Win95.
GetDriveType("C:") returns DRIVE_FIXED on both systems.
Den ganzen Artikel einschließlich eines Testbeispiels kann man hier einsehen:
http://codeguru.earthweb.com/system/getdrivetypeexplorer.shtml
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