Failed to load library: ucrtbase.dll: library initializer failed..

[NTT1906]

Describe the bug
[Failed to load library: ucrtbase.dll](ucrtbase.dll: library initializer failed..>)

<Application D:\clion\OOP\svg-rendering\svg_rendering.exe (6892). Unable to load client library: ucrtbase.dll: library initializer failed..>
~~Dr.M~~ WARNING: unable to locate results file: can't open C:\Users\nttis\AppData\Roaming\Dr. Memory/resfile.6892 (code=2).
Dr. Memory failed to start the target application, perhaps due to
interference from invasive security software.
Try disabling other software or running in a virtual machine.
~~Dr.M~~ WARNING: application exited with abnormal code 0xffffffff

To Reproduce
Steps to reproduce the behavior:

1. Use drmemory with an x64 executable
2. Get error
   Please also answer these questions drawn from https://drmemory.org/page_help.html#sec_narrow :

• Does the problem go away when running in light mode (pass -light to Dr. Memory)?

No

• Does the problem go away when running with the options -leaks_only -no_count_leaks -no_track_allocs?

No

• Does the problem go away when running under plain DynamoRIO? Do this by running dynamorio/bin32/drrun -- <application and args> or dynamorio/bin64/drrun -- <application and args> depending on the bitwidth of your applicaiton. (Ignore warnings about "incomplete installation".)

Cannot find dynamorio/bin32/drrun

• What happens with the debug version of Dr. Memory and of its underlying engine DynamoRIO? Try this by passing -debug -dr_debug -pause_at_assert. Are any messages reported?

<Starting application d:\clion\OOP\svg-rendering\svg_rendering.exe (18324)>
<Running on newer-than-this-build "Microsoft Windows 10-2009 x64">
<Early threads found>
<Initial options = -no_dynamic_options -logdir 'C:\Users\nttis\AppData\Roaming\Dr. Memory\dynamorio' -client_lib 'C:\Program Files (x86)\Dr. Memory\bin64\debug\drmemorylib.dll;0;`-pause_at_assert` -logdir `C:\Users\nttis\AppData\Roaming\Dr. Memory` -symcache_dir `C:\Users\nttis\AppData\Roaming\Dr. Memory\symcache` -lib_blocklist_default `C:\WINDOWS*.d??,C:\Program Files\Common Files\Microsoft Shared*.d??,C:\Program Files (x86)\Common Files\Microsoft Shared*.d??` -resfile 18324 ' -client_lib64 'C:\Program Files (x86)\Dr. Memory\bin64\debug\drmemorylib.dll;0;`-pause_at_assert` -logdir `C:\Users\nttis\AppData\Roaming\Dr. Memory` -symcache_dir `C:\Users\nttis\AppData\Roaming\Dr. Memory\symcache` -lib_blocklist_default `C:\WINDOWS*.d??,C:\Program Files\Common Files\Microsoft Shared*.d??,C:\Program Files (x86)\Common Files\Microsoft Shared*.d??` -resfile 18324 ' -code_api -probe_api -stack_size 56K -disable_traces -no_enable_traces -max_elide_jmp 0 -max_elide_call 0 -no_shared_traces -bb_ibl_targets -bb_single_restore_prefix -no_shared_trace_ibl_routine -no_enable_reset -no_reset_at_switch_to_os_at_vmm_limit -reset_at_vmm_percent_free_limit 0 -no_reset_at_vmm_full -reset_at_commit_free_limit 0B -reset_every_nth_pending 0 -vm_size 256M -no_early_inject -no_inline_ignored_syscalls -native_exec_default_list '' -no_native_exec_managed_code -no_indcall2direct >
<Application d:\clion\OOP\svg-rendering\svg_rendering.exe (18324). Unable to load client library: ucrtbase.dll: library initializer failed..>
~~Dr.M~~ WARNING: unable to locate results file: can't open C:\Users\nttis\AppData\Roaming\Dr. Memory/resfile.18324 (code=2).
Dr. Memory failed to start the target application, perhaps due to
interference from invasive security software.
Try disabling other software or running in a virtual machine.
~~Dr.M~~ WARNING: application exited with abnormal code 0xffffffff

Expected behavior
Running normally

Screenshots or Pasted Text
If applicable, add screenshots to help explain your problem. For text, please cut and paste the text here, delimited by lines consisting of three backtics to render it verbatim, like this:

```

~~Dr.M~~ WARNING: unable to locate results file: can't open C:\Users\nttis\AppData\Roaming\Dr. Memory/resfile.6892 (code=2).
Dr. Memory failed to start the target application, perhaps due to
interference from invasive security software.
Try disabling other software or running in a virtual machine.
~~Dr.M~~ WARNING: application exited with abnormal code 0xffffffff
```

Versions

• What version of Dr. Memory are you using?

Dr. Memory version 2.6.0 -- build 0

• Does the latest build from
  https://drmemory.org/page_download.html#sec_latest_build solve the problem?

My build is the latest build

• What operating system version are you running on? ("Windows 10" is not sufficient: give the release number.)
• Is your application 32-bit or 64-bit?

64bit
Additional context
Add any other context about the problem here.

[Julioalbornozv]

Encountering the same issue. Currently using the latest build, running on Windows 11 Pro version 24H2 for a 64bit application compiled with visual studio 2022 version 17.11.4. Managed to run the application with dynamorio/bin64/drrun. Other options listed at https://drmemory.org/page_help.html#sec_narrow wont work.

[Wemmons831]

Did you manage to get drmemory to work?

[deviantbit]

Having same issue with builds with mingw and visual studio 2022. It was working fine until the last windows update. I have completely disabled virus protection. This will not execute.

[hiszpanski]

Same problem (Windows 11 Pro 10.0.26100; 64-bit application compiled with x86_64-w64-mingw32-gcc 11.3.1). Running directly via dynamorio\bin64\drrun.exe works.

[sonny-campbell]

Same error happening for me. When I manually try dynamorio\bin64\drrun.exe I don't get the error, but nothing happens and my app doesn't run.

Windows 11 Pro 10.0.26100. App compiled with MSVC 19.43.34808.0

[NTT1906]

any news?

[chriskushmonotype]

(also watching likely dup #2539 and possible dup #2551.)

Updating version from 2.6.0 to 2.6.2 fixed this error but got an internal error instead

[TyBalduf]

Encountered the same issue today with a fresh install of 2.6.0 on Windows 11. Same issue downgrading to 2.5.0.

https://drmemory.org/page_help.html#sec_narrow only DynamoRIO ran successfully. No luck generating ldmp files.

[malciin]

Same behaviour there, tried both 2.6.0 & newest 2.6.20368 but get:

Dr. Memory internal crash at PC 0x0000017120f580c0.  Please report this at http://drmemory.org/issues along with the results of running '-debug -dr_debug'.  Program aborted.
0xc0000005 0x00000000 0x0000017120f580c0 0x0000017120f580c0 0x0000000000000008 0x0000017120f580c0
Base: 0x0000000071000000
Registers: eax=0x000001711dfd9a40 ebx=0x0000000000000000 ecx=0x00007ff638820d74 edx=0x0000000000000001
        esi=0x000001711dfd9a40 edi=0x00007ff638820d74 esp=0x000000389717f148 ebp=0x000001711e1c9ab0
        r8 =0x0000000000000069 r9 =0x00000000000002f8 r10=0x000000000000005f r11=0x00000000c0000100
        r12=0x0000000000000000 r13=0x0000000000000000 r14=0x00007ff638820d58 r15=0x0000000000000000
        eflags=0x0000000000010206

[zzzy-zh86]

I am quite sure it is completely unusable on Windows 11. I even thought it was a security permission and DLL issue, but after troubleshooting, there was no problem.

[zzzy-zh86]

cronbuild-2.6.20434
<Application Dr. Memory internal crash at PC 0x00007ff752dbfd48. Please report this at http://drmemory.org/issues along with the results of running '-debug -dr_debug'. Program aborted.
0xc0000005 0x00000000 0x00007ff752dbfd48 0x00007ff752dbfd48 0x0000000000000001 0x0000000000000000
Base: 0x0000000071000000
Registers: eax=0x0000000000000000 ebx=0x0000000000000000 ecx=0x000001e75a244a80 edx=0x00007ffb6f250057
esi=0x0000000000000000 edi=0x0000000000000000 esp=0x000001e75a261920 ebp=0x0000000000000000
r8 =0x000001e75a2658b0 r9 =0x0000000000000000 r10=0x000001e75a2450f8 r11=0x00007ffb6f250057
r12=0x000001e75a244a80 r13=0x000001e75a2658b0 r14=0x000001e75a261a90 r15=0x000001e75a2658b0
eflags=0x0000000000010246
2.6.20434-0-(Dec 13 2025 03:23:51) WinVer=105;Rel=2009;Build=26200;Edition=Professional
-no_dynamic_options -logdir 'C:\Users\AppData\Roaming\Dr. Memory\dynamorio' -client_lib 'C:\Program Files (x86)\Dr. Memory\bin64\release\drmemorylib.dll;0;-brief -logdir C:\Users\\AppData\Roaming\Dr. Memory -symcache_dir C:\Users\\AppData\Roaming\Dr. Memory\symcache -lib_blocklist_default `C:\WINDOWS*.d??,C:
C:\Program Files (x86)\Dr. Memory\dynamorio\lib64\release\dynamorio.dll=0x0000000071000000
C:\Program Files (x86)\Dr. Memory\bin64\release\drmemorylib.dll=0x00007ff752d40000
C:\Program Files (x86)\Dr. Memory\bin64\release/dbghelp.dll=0x00007ff753000000
C:\WINDOWS/system32/OLEAUT32.dll=0x00007ffbed060000
C:\WINDOWS/system32/msvcp_win.dll=0x00007ffbec7d0000
C:\WINDOWS/system32/combase.dll=0x00007ffbee3d0000
C:\WINDOWS/system32/RPCRT4.dll=0x00007ff>
Dr.M WARNING: unable to locate results file: can't open C:\Users\AppData\Roaming\Dr. Memory/resfile.4680 (code=2).
Dr. Memory failed to start the target application, perhaps due to
interference from invasive security software.
Try disabling other software or running in a virtual machine.
WARNING: Examine the following unusual libraries in this process to help identify
invasive software that may have affected the target application:

    C:\WINDOWS\System32\msvcp_win.dll
    C:\WINDOWS\System32\OLEAUT32.dll
    C:\WINDOWS\System32\combase.dll

Please file a bug about this at http://drmemory.org/issues
Dr.M WARNING: application exited with abnormal code 0xffffffff