microsoft/usersim

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Stars: 105
Forks: 34
Open beginner issues: 0
Indexed issues: 31
Avg merge: 3d 39m
Merged PRs (30d): 5

Dominant language: C++
License: MIT
Last GitHub push: Sep 1, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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31 open issues indexed

nit: should we rename `destination_ipv4_address` and `destination_port` to a more accurate name, like local_ip and remote_ip? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#308 · Opened Jun 1, 2026
Duplicate cxplat code Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/usersim#275 · 1 comment · 1 reaction · Opened Sep 8, 2025
CX plat lacks kernel mode tests Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/usersim#244 · Opened Apr 2, 2025
cxplat_winkernel has dependencies on the CRT Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/usersim#236 · Opened Nov 19, 2024
Deprecate the vcxproj way of building usersim and cxplat Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#233 · Opened Nov 18, 2024
cxplat_kernel when running against usersim does the wrong thing in cxplat_get_current_processor_number Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/usersim#222 · Opened Oct 28, 2024
Run ARM64 tests Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

microsoft/usersim#212 · Opened Sep 17, 2024
KeSetTimer doesn't fire when there is a heavy DPC load Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/usersim#189 · 2 comments · Opened Apr 24, 2024
KeSetSystemGroupAffinityThread shouldn't bugcheck on bad affinity mask Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/usersim#185 · Opened Apr 19, 2024
KfRaiseIrql usersim API performance renders it hard to use in stress Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#184 · 6 comments · Opened Apr 17, 2024
Perform deepcopy in WdfDeviceInitAssignName Open

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

microsoft/usersim#159 · Opened Dec 15, 2023
Enable code scanning in this repo Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/usersim#158 · Opened Dec 11, 2023
CXPlat must initialize all sub-components prior to enabling fault injection Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/usersim#148 · Opened Nov 30, 2023
Support for KeInitializeEvent/KeSetEvent/KeResetEvent cxplat equivalent Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/usersim#139 · Opened Sep 27, 2023
Support for KeInitializeTimer/KeSetTimer/KeSetTimer cxplat equivalent Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

microsoft/usersim#136 · Opened Sep 27, 2023
Support for KeInitializeSpinLock/KeAcquireSpinLockRaiseToDpc/KeReleaseSpinLock cxplat equivalent Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/usersim#135 · 1 comment · Opened Sep 27, 2023
Support for KeInitializeDpc/KeSetTargetProcessorDpc/KeInsertQueueDpc/KeFlushQueuedDpcs cxplat equivalent Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/usersim#134 · 1 comment · Opened Sep 27, 2023
Optimize cxplat_winuser/rundown_winuser.cpp Open

optimization

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/usersim#98 · Opened Aug 28, 2023
KeInitializeSemaphore leaks handles Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#95 · Opened Aug 27, 2023
inc headers should not include src headers Open

cleanup

Difficulty 3/5 1-2 days Newbie friendliness 48/100

microsoft/usersim#91 · Opened Aug 22, 2023
cxplat: use of inline functions and macros Open

optimization

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#90 · Opened Aug 22, 2023
vcxproj file won't load on xbox Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/usersim#85 · 2 comments · Opened Aug 20, 2023
ifdefs per platform Open

cleanup

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#83 · Opened Aug 20, 2023
Including ntddk.h in user mode generates lots of compiler warnings Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

microsoft/usersim#79 · Opened Aug 10, 2023
Etw* API support Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

microsoft/usersim#70 · Opened Jul 31, 2023
IofCompleteRequest support Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#69 · Opened Jul 31, 2023
Create nuget package Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/usersim#65 · Opened Jul 28, 2023
Support NtQuerySystemInformation with SystemCodeIntegrityInformation Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/usersim#50 · Opened Jul 16, 2023
Add support for MmGetMdlPfnArray Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/usersim#49 · Opened Jul 16, 2023
Possible KeBugCheck improvements Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/usersim#47 · Opened Jul 14, 2023
Create a generic test executable that can be used with various driver DLLs Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

microsoft/usersim#36 · 2 reactions · Opened Jul 7, 2023

microsoft/usersim

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