Check for directory that executable doesn't have permissions for causes crash

[tadgerb]

The check for Directory::Exists referenced below doesn't check the paths in the PATH environment variable safely, e.g. if any of the paths exist but cannot be accessed for permissions reasons, the call throws an exception; probably rightly so?; causing the FixProgramSearchPath to crash out. Ideally, it would instead catch those exceptions and carry on, as it doesn't need to include any paths it doesn't have access to.

miktex/Libraries/MiKTeX/Core/Utils/Utils.cpp

Line 888 in e4b8ca4

else if (Directory::Exists(dir) && checkCompetition)

[Moving-Electrons]

When working on this bug, please keep in mind that some of us need to install MiKTeX in portable mode because access to windows system folders is not allowed. Thanks!.

[edocevoli]

This has been fixed.