Bug report #4370

Can not start QGIS

Added by Daniel Rohde over 9 years ago. Updated over 9 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Build/Install
Affected QGIS version: Regression?:No
Operating System:XP/Win7 Easy fix?:No
Pull Request or Patch supplied:No Resolution:wontfix
Crashes QGIS or corrupts data: Copied to github as #:14302

Description

Hello

I got a problem with a DLL (libeay32.dll) and the search order for DLLs.
A Program called "CrystalReport Viewer" installed a DLL with the Name "LIBEAY32.dll" into the Windows system directory.
QGIS is using a DLL with the same name, but from a different manufacturer.
So if I try to start QGIS, it searches for the "LIBEAY32.dll" in the Windows system directory. So QGIS finds the wrong DLL and can't start.
The question is:
Why QGIS doesn't search in its own installation directory first, and then try to find the missing DLL in the Windows system directory?
In my oppinion there is something wrong with the search-order.

problem_libeay32_dll.PNG (5.12 KB) Daniel Rohde, 2011-10-11 01:41 AM


Related issues

Related to QGIS Application - Bug report #5863: QGIS doesn't start Rejected 2012-06-25

History

#1 Updated by Tim Sutton over 9 years ago

  • Target version changed from Version 1.7.1 to Version 1.7.2

#2 Updated by Giovanni Manghi over 9 years ago

  • Target version changed from Version 1.7.2 to Version 1.7.3

#3 Updated by Paolo Cavallini over 9 years ago

  • Category set to Build/Install

#4 Updated by Paolo Cavallini over 9 years ago

  • Status changed from Open to Feedback

Can the order be decided at the application level, or is it system-wide?

#5 Updated by Jürgen Fischer over 9 years ago

Paolo Cavallini wrote:

Can the order be decided at the application level, or is it system-wide?

Not really. Windows searches the directory where the .exe is first, system32 second and then everything that is in PATH. So QGIS doesn't have a chance to prevent usage of the system32 version (unless we move all DLLs to a single spot).

Moving the incompatible LIBEAY32.DLL version from system32 to the "CrystalReports Viewer" directory would also help.

#6 Updated by Paolo Cavallini over 9 years ago

  • Resolution set to wontfix
  • Status changed from Feedback to Closed

So I guess we cannot do much from QGIS side. Reopen if necessary.

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