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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: ncbi.nlm.nih.gov X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM8PR09MB7095.namprd09.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 76aa1e0c-4962-4c91-6e91-08dadc508529 X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Dec 2022 14:52:41.5769 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 14b77578-9773-42d5-8507-251ca2dc2b06 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR09MB6272 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,SPF_PASS,TXREP,T_SPF_HELO_PERMERROR autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: > Let's consider this problem again, but I don't see a quick and easy > solution. $ realpath /cygdrive/s/ado/msadox.dll /cygdrive/s/ado/msadox.dll <=3D=3D=3D=3D=3D=3D IMO the problem i= s actually here $ realpath msadox.dll /cygdrive/c/Program Files/Common Files/System/ado/msadox.dll Both paths should start with /cygdrive/c, and then those would be identical (and, hence, I suppose for the purposes of the OP). A substed drive is nothing BUT a symlink, should be treated no differently = than /cygdrive/s -> /cygdrive/c/Program Files/Common Files/System Because even Windows shows you the same: S:\: =3D> C:\Program Files\Common Files\System Since realpath is supposed to resolve all symlinks, it should never show an= y /cygdrive/s in the resultant path. My $.02, Anton Lavrentiev Contractor NIH/NLM/NCBI