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OpenCV DLL for Windows is linked against several DLL's that come with the Desktop Experience Feature. If you don't have the Desktop Experience Installed then the OpenCV DLL will not load. Here is a list of the DLL's that OpenCV require from the Desktop Experience Feature...

[ ? ] MF.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] MFPLAT.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] MFREADWRITE.DLL Error opening file. The system cannot find the file specified (2).
[D? ] API-MS-WIN-CORE-WINRT-ERROR-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[D? ] API-MS-WIN-CORE-WINRT-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[D? ] API-MS-WIN-CORE-WINRT-ROBUFFER-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[D? ] API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[D? ] DCOMP.DLL Error opening file. The system cannot find the file specified (2).
[D? ] IESHIMS.DLL Error opening file. The system cannot find the file specified (2).
[D? ] WLANAPI.DLL Error opening file. The system cannot find the file specified (2).

vonnieda and others added 10 commits August 21, 2016 22:16
* develop:
  Release of 2.4.13-0
  Fix openpnp#5 by cleaning old opencv instances on start on Windows
  Add bundle plugin and packaging
* develop:
  3.2.0-0 build.
* develop:
  Prep for 3.2.0-1 release with updated Linux binaries./
  Added 32 bit binaries built in Ubuntu 14.04.5.
  New version of linux x64 binaries built on Ubuntu 14.04.5, requires max of libstdc++ 3.4.15.
* develop:
  Prep release 3.4.2-0
  Started integration work to get 3.4.2 released.
  Correcting markdown mistakes
  Updating release notes
  Adding arch/linux binaries for Raspberry Pi
  Create CONTRIBUTING.md
* develop:
  Prep release 3.4.2-1
  Fixes library loading on JDK9+, including 10 and 11. Removes a broken test that no longer applies to JDK9+. This test assumes the type of the classloader, which is no longer safe to assume. The test could probably be rewritten but I don't consider it important at the moment.
  Better instructions for deploy.
* develop:
  Prep release 3.4.2-2
  close inputstream
  fix typo with loadLocally() function in readme
OpenCV DLL for Windows is linked against several DLL's that come with the Desktop Experience Feature.  If you don't have the Desktop Experience Installed then the OpenCV DLL will not load.  Here is a list of the DLL's that OpenCV require from the Desktop Experience Feature...

[ ? ]  MF.DLL                                                                                                                         Error opening file. The system cannot find the file specified (2).
[ ? ]  MFPLAT.DLL                                                                                                                     Error opening file. The system cannot find the file specified (2).
[ ? ]  MFREADWRITE.DLL                                                                                                                Error opening file. The system cannot find the file specified (2).
[D? ]  API-MS-WIN-CORE-WINRT-ERROR-L1-1-0.DLL                                                                                         Error opening file. The system cannot find the file specified (2).
[D? ]  API-MS-WIN-CORE-WINRT-L1-1-0.DLL                                                                                               Error opening file. The system cannot find the file specified (2).
[D? ]  API-MS-WIN-CORE-WINRT-ROBUFFER-L1-1-0.DLL                                                                                      Error opening file. The system cannot find the file specified (2).
[D? ]  API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL                                                                                        Error opening file. The system cannot find the file specified (2).
[D? ]  DCOMP.DLL                                                                                                                      Error opening file. The system cannot find the file specified (2).
[D? ]  IESHIMS.DLL                                                                                                                    Error opening file. The system cannot find the file specified (2).
[D? ]  WLANAPI.DLL                                                                                                                    Error opening file. The system cannot find the file specified (2).
* develop:
  Prep release 4.3.0-0
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3 participants