Thanks for your help with this. The Qt Creator editor is a good alternative. I did run Dependency Walker - long time since I have looked at the output from this and not sure what I am seeing right now, but I've pasted the an abreviated version of the output below (too long to paste the whole thing) if it tells you something. Thanks again.
| System Information |
| Search Order |
*
Legend: F File E Error (path not valid) *
*
Side-by-Side components (Windows 2000/XP/2003/Vista/+)
[F ] c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.14393.2938_none_c58b03c797c07d8c\COMCTL32.DLL
[F ] c:\windows\winsxs\x86_microsoft.windows.gdiplus_6595b64144ccf1df_1.1.14393.2969_none_f678e0c2f2505d00\GDIPLUS.DLL
The system's "KnownDLLs" list
[F ] c:\windows\system32\ADVAPI32.DLL
[F ] c:\windows\system32\BCRYPTPRIMITIVES.DLL
[F ] c:\windows\system32\CFGMGR32.DLL
[F ] c:\windows\system32\CLBCATQ.DLL
[F ] c:\windows\system32\COMBASE.DLL
[F ] c:\windows\system32\COMCTL32.DLL
[F ] c:\windows\system32\COMDLG32.DLL
[F ] c:\windows\system32\COML2.DLL
[F ] c:\windows\system32\CRYPT32.DLL
[F ] c:\windows\system32\DIFXAPI.DLL
[F ] c:\windows\system32\GDI32.DLL
[F ] c:\windows\system32\GDI32FULL.DLL
[F ] c:\windows\system32\GDIPLUS.DLL
[F ] c:\windows\system32\IMAGEHLP.DLL
[F ] c:\windows\system32\IMM32.DLL
[F ] c:\windows\system32\KERNEL.APPCORE.DLL
[F ] c:\windows\system32\KERNEL32.DLL
[F ] c:\windows\system32\KERNELBASE.DLL
[F ] c:\windows\system32\LPK.DLL
[F ] c:\windows\system32\MSASN1.DLL
[F ] c:\windows\system32\MSCTF.DLL
[F ] c:\windows\system32\MSVCP_WIN.DLL
[F ] c:\windows\system32\MSVCRT.DLL
[F ] c:\windows\system32\NORMALIZ.DLL
[F ] c:\windows\system32\NSI.DLL
[F ] c:\windows\system32\NTDLL.DLL
[F ] c:\windows\system32\NTDLL.DLL
[F ] c:\windows\system32\OLE32.DLL
[F ] c:\windows\system32\OLEAUT32.DLL
[F ] c:\windows\system32\POWRPROF.DLL
[F ] c:\windows\system32\PROFAPI.DLL
[F ] c:\windows\system32\PSAPI.DLL
[F ] c:\windows\system32\RPCRT4.DLL
[F ] c:\windows\system32\SECHOST.DLL
[F ] c:\windows\system32\SETUPAPI.DLL
[F ] c:\windows\system32\SHCORE.DLL
[F ] c:\windows\system32\SHELL32.DLL
[F ] c:\windows\system32\SHLWAPI.DLL
[F ] c:\windows\system32\UCRTBASE.DLL
[F ] c:\windows\system32\USER32.DLL
[F ] c:\windows\system32\WIN32U.DLL
[F ] c:\windows\system32\WINDOWS.STORAGE.DLL
[F ] c:\windows\system32\WINTRUST.DLL
[F ] c:\windows\system32\WLDAP32.DLL
[F ] c:\windows\system32\WOW64.DLL
[F ] c:\windows\system32\WOW64CPU.DLL
[F ] c:\windows\system32\WOW64WIN.DLL
[F ] c:\windows\system32\WS2_32.DLL
The application directory
[ ] C:\Qt\5.12.3\msvc2015_64\bin
The 32-bit system directory
[ ] C:\Windows\system32
The 16-bit system directory (Windows NT/2000/XP/2003/Vista/+)
[ ] C:\Windows\system
The system's root OS directory
[ ] C:\Windows
The application's registered "App Paths" directories
The system's "PATH" environment variable directories
[ ] C:\Program Files\Microsoft MPI\Bin
[ ] C:\Windows\system32
[ ] C:\Windows
[ ] c:\Qt\5.12.3\bin\
| Module Dependency Tree |
*
Legend: F Forwarded Module ? Missing Module 6 64-bit Module *
D Delay Load Module ! Invalid Module *
* Dynamic Module E Import/Export Mismatch or Load Failure *
^ Duplicate Module *
*
[ 6] DESIGNER.EXE
[ 6] QT5DESIGNERCOMPONENTS.DLL
[ ^6] QT5DESIGNER.DLL
[ ^6] QT5WIDGETS.DLL
[ ^6] QT5GUI.DLL
[ ^6] QT5XML.DLL
[ ^6] QT5CORE.DLL
[ E ] KERNEL32.DLL
[FE ] NTDLL.DLL
[ E ] VCRUNTIME140.DLL
[ ^6] API-MS-WIN-CRT-RUNTIME-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-STRING-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-HEAP-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ 6] QT5DESIGNER.DLL
[ ^6] QT5WIDGETS.DLL
[ ^6] QT5GUI.DLL
[ ^6] QT5XML.DLL
[ ^6] QT5CORE.DLL
[ E ] MSVCP140.DLL
[ E ] VCRUNTIME140.DLL
[ ^6] API-MS-WIN-CRT-HEAP-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-LOCALE-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-STRING-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-RUNTIME-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-STDIO-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ E6] API-MS-WIN-CRT-MATH-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-CONVERT-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-FILESYSTEM-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-TIME-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-ENVIRONMENT-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-UTILITY-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ E ] KERNEL32.DLL
[FE ] NTDLL.DLL
[DE ] CONCRT140.DLL
[ E ] MSVCP140.DLL
[ E ] VCRUNTIME140.DLL
[ ^6] API-MS-WIN-CRT-RUNTIME-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-HEAP-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ E6] API-MS-WIN-CRT-MATH-L1-1-0.DLL
[ ^6] API-MS-WIN-CRT-STRING-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-STDIO-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ E ] KERNEL32.DLL
[FE ] NTDLL.DLL
[ E ] KERNEL32.DLL
[FE ] NTDLL.DLL
[ E ] VCRUNTIME140.DLL
[ ^6] API-MS-WIN-CRT-MATH-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-RUNTIME-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-STRING-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-STDIO-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-HEAP-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ 6] QT5PRINTSUPPORT.DLL
[ ^6] QT5WIDGETS.DLL
[ ^6] QT5GUI.DLL
[ ^6] QT5CORE.DLL
[ E ] WINSPOOL.DRV
[ E ] COMDLG32.DLL
[ E ] GDI32.DLL
[ E ] USER32.DLL
[ E ] KERNEL32.DLL
[FE ] NTDLL.DLL
[ E ] VCRUNTIME140.DLL
[ ^6] API-MS-WIN-CRT-STDIO-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-HEAP-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-MATH-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ ^6] API-MS-WIN-CRT-RUNTIME-L1-1-0.DLL
[FE ] UCRTBASE.DLL
[ 6] QT5WIDGETS.DLL
[ ^6] QT5GUI.DLL
[ ^6] QT5CORE.DLL
[ E ] UXTHEME.DLL
[ E ] MSVCRT.DLL
[ ? ] API-MS-WIN-CORE-LIBRARYLOADER-L1-2-0.DLL
[ E6] API-MS-WIN-CORE-SYNCH-L1-2-0.DLL
[FE ] KERNEL32.DLL
[FE6] API-MS-WIN-CORE-SYNCH-L1-1-0.DLL
[ ? ] API-MS-WIN-CORE-HEAP-L1-2-0.DLL
[ ? ] API-MS-WIN-CORE-ERRORHANDLING-L1-1-1.DLL
[ ? ] API-MS-WIN-CORE-PROCESSTHREADS-L1-1-2.DLL
[ ? ] API-MS-WIN-CORE-LOCALIZATION-L1-2-1.DLL
[ ? ] API-MS-WIN-CORE-DEBUG-L1-1-1.DLL
[ ^6] API-MS-WIN-CORE-HANDLE-L1-1-0.DLL
[FE ] KERNEL32.DLL
[ ? ] API-MS-WIN-CORE-SYSINFO-L1-2-1.DLL
[ ? ] API-MS-WIN-CORE-LIBRARYLOADER-L1-2-2.DLL
[ ? ] API-MS-WIN-CORE-FILE-L1-2-1.DLL
[ ^6] API-MS-WIN-CORE-STRING-L1-1-0.DLL
[FE ] KERNEL32.DLL
[ ^6] API-MS-WIN-CORE-UTIL-L1-1-0.DLL
[FE ] KERNEL32.DLL
[FE ] NTDLL.DLL
[ ? ] API-MS-WIN-CORE-WINRT-ERROR-L1-1-1.DLL
[ ? ] API-MS-WIN-CORE-REGISTRY-L1-1-0.DLL
[ ? ] API-MS-WIN-SECURITY-BASE-L1-2-0.DLL
[ ? ] API-MS-WIN-CORE-HEAP-L2-1-0.DLL
[ ? ] API-MS-WIN-CORE-MEMORY-L1-1-2.DLL
[ ^6] API-MS-WIN-CORE-PROFILE-L1-1-0.DLL
[FE ] KERNEL32.DLL
[ ? ] API-MS-WIN-CORE-STRING-L2-1-0.DLL
[ ? ] API-MS-WIN-CORE-PROCESSENVIRONMENT-L1-2-0.DLL
[ ^6] API-MS-WIN-CORE-TIMEZONE-L1-1-0.DLL
[FE ] KERNEL32.DLL
[ ? ] API-MS-WIN-CORE-SIDEBYSIDE-L1-1-0.DLL
[ ? ] API-MS-WIN-CORE-ATOMS-L1-1-0.DLL
[ ? ] API-MS-WIN-CORE-KERNEL32-LEGACY-L1-1-1.DLL
[ ? ] API-MS-WIN-CORE-STRING-OBSOLETE-L1-1-0.DLL
[ ? ] API-MS-WIN-CORE-SHLWAPI-OBSOLETE-L1-2-0.DLL
[ ? ] API-MS-WIN-CORE-LOCALIZATION-OBSOLETE-L1-3-0.DLL
[ E ] NTDLL.DLL
[ E ] GDI32.DLL
[ E ] USER32.DLL
[FE ] NTDLL.DLL
[ ? ] API-MS-WIN-CORE-DELAYLOAD-L1-1-1.DLL
[D? ] API-MS-WIN-CORE-COM-L1-1-1.DLL
[DE ] OLEAUT32.DLL
[D? ] API-MS-WIN-CORE-WINRT-STRING-L1-1-0.DLL
[D? ] API-MS-WIN-SECURITY-SDDL-L1-1-0.DLL
[DE ] CRYPTSP.DLL
[DE ] DWMAPI.DLL
[DE ] WINDOWSCODECS.DLL
...
| Module List |*
*
Legend: D Delay Load Module ? Missing Module 6 64-bit Module *
* Dynamic Module ! Invalid Module *
E Import/Export Mismatch or Load Failure *
*
Module File Time Stamp Link Time Stamp File Size Attr. Link Checksum Real Checksum CPU Subsystem Symbols Preferred Base Actual Base Virtual Size Load Order File Ver Product Ver Image Ver Linker Ver OS Ver Subsystem Ver
[ ? ] API-MS-WIN-CORE-APIQUERY-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-APPCOMPAT-L1-1-1.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-APPINIT-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-ATOMS-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-CALENDAR-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-COM-L1-1-0 Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-COM-L1-1-1.DLL Error opening file. The system cannot find the file specified (2).
[ ? ] API-MS-WIN-CORE-COM-MIDLPROXYSTUB-L1-1-0.DLL Error opening file. The system cannot find the file specified (2).
| Log |*
Error: At least one required implicit or forwarded dependency was not found.
Error: At least one module has an unresolved import due to a missing export function in an implicitly dependent module.
Error: Modules with different CPU types were found.
Error: A circular dependency was detected.
Warning: At least one delay-load dependency module was not found.
Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.