Read process information. Win32Exception ERROR_PARTIAL_COPY
I want to get the process id of Microsoft Movies & TV (Video.UI.exe).
When I loop through all the processes to check if the file name contains Video.UI.exe I get a lot of Win32Exceptions which I expected. I thought so. I only expected NativeErrorCode 0x00000005 'Access denied' because I'm not simply not allowed. But I get a lot of 0x0000012B 'ERROR_PARTIAL_COPY' exceptions and I don't know why. I tried to create an error repro inside of a console app but there I don't get the error. I made sure to use the same relevant code. Also both applications (the main WinForms app and the console error repro) have the same manifest containing: <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
Here is the relevant code:
foreach (Process p in Process.GetProcesses()) {
try {
if (p.MainModule.FileName.Contains(modelId))
Console.WriteLine(string.Format("Match: {0} {1}", p.Id, p.MainModule.FileName));
else
if (p.MainModule.FileName.Contains("WindowsApps") && p.MainModule.FileName.Contains("Video.UI.exe"))
Console.WriteLine(string.Format("Match: {0} {1}", p.Id, p.MainModule.FileName));
}
catch (Win32Exception e) {
Console.WriteLine(string.Format("{0,-20}{1}", p.ProcessName, e.NativeErrorCode));
}
}
Console Output:
csrss 5
svchost 5
csrss 5
wininit 5
SgrmBroker 5
svchost 5
NisSrv 5
MsMpEng 5
svchost 5
Match: 4944 C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.20112.10111.0_x64__8wekyb3d8bbwe\Video.UI.exe
Memory Compression 5
Registry 5
smss 5
SecurityHealthService 5
ScriptedSandbox64 299
services 5
System -2147467259
Idle -2147467259
WinForm App Trace output (Exception thrown... lines removed):
rundll32 299
svchost 299
csrss 5
svchost 299
svchost 299
svchost 299
chrome 299
conhost 299
svchost 299
svchost 5
conhost 299
svchost 299
conhost 299
ServiceHub.RoslynCodeAnalysisService 299
steamwebhelper 299
svchost 299
dwm 299
svchost 299
ShinraMeter 299
svchost 299
SearchIndexer 299
svchost 299
chrome 299
Microsoft.ServiceHub.Controller 299
svchost 299
svchost 299
svchost 299
RuntimeBroker 299
csrss 5
svchost 299
sihost 299
svchost 299
svchost 299
wininit 5
chrome 299
Microsoft.Photos 299
RuntimeBroker 299
SgrmBroker 5
chrome 299
steamwebhelper 299
dllhost 299
svchost 299
svchost 299
RuntimeBroker 299
svchost 299
svchost 299
svchost 299
conhost 299
svchost 299
svchost 299
StartMenuExperienceHost 299
svchost 299
Taskmgr 299
svchost 299
svchost 299
svchost 299
svchost 299
fontdrvhost 299
taskhostw 299
chrome 299
svchost 299
fontdrvhost 299
conhost 299
conhost 299
LockApp 299
svchost 299
chrome 299
svchost 299
ScriptedSandbox64 299
svchost 299
conhost 299
chrome 299
steamwebhelper 299
chrome 299
Corsair.Service.CpuIdRemote64 299
conhost 299
NisSrv 5
conhost 299
conhost 299
ServiceHub.DataWarehouseHost 299
conhost 299
RuntimeBroker 299
chrome 299
ShellExperienceHost 299
svchost 299
winlogon 299
conhost 299
Microsoft.ServiceHub.Controller 299
MsMpEng 5
svchost 299
steamwebhelper 299
ServiceHub.RoslynCodeAnalysisService 299
ServiceHub.DataWarehouseHost 299
svchost 5
SearchProtocolHost 299
ServiceHub.DataWarehouseHost 299
ConsoleApp1 299
GameBarPresenceWriter 299
steamwebhelper 299
UserOOBEBroker 299
RuntimeBroker 299
conhost 299
svchost 299
svchost 299
nvcontainer 299
svchost 299
conhost 299
svchost 299
svchost 299
conhost 299
RuntimeBroker 299
chrome 299
svchost 299
steamwebhelper 299
svchost 299
svchost 299
TextInputHost 299
Microsoft.ServiceHub.Controller 299
conhost 299
chrome 299
SettingSyncHost 299
Video.UI 299
svchost 299
chrome 299
svchost 299
chrome 299
svchost 299
svchost 299
ApplicationFrameHost 299
WmiPrvSE 299
conhost 299
YourPhone 299
ScriptedSandbox64 299
nvcontainer 299
chrome 299
WmiPrvSE 299
svchost 299
WUDFHost 299
StandardCollector.Service 299
svchost 299
ServiceHub.RoslynCodeAnalysisService 299
conhost 299
svchost 299
chrome 299
conhost 299
steamwebhelper 299
svchost 299
nvsphelper64 299
SearchFilterHost 299
conhost 299
chrome 299
ctfmon 299
Memory Compression 5
conhost 299
Registry 5
svchost 299
svchost 299
dllhost 299
conhost 299
chrome 299
svchost 299
svchost 299
NVDisplay.Container 299
chrome 299
svchost 299
conhost 299
conhost 299
OfficeClickToRun 299
steamwebhelper 299
conhost 299
NVIDIA Share 299
RuntimeBroker 299
nvcontainer 299
svchost 299
dllhost 299
SearchApp 299
conhost 299
svchost 299
smss 5
chrome 299
ScriptedSandbox64 299
conhost 299
NVDisplay.Container 299
VBCSCompiler 299
conhost 299
rundll32 299
conhost 299
svchost 299
svchost 299
spoolsv 299
svchost 299
svchost 299
svchost 299
msvsmon 299
conhost 299
svchost 299
conhost 299
NVIDIA Share 299
conhost 299
svchost 299
audiodg 299
SearchProtocolHost 299
svchost 299
conhost 299
svchost 299
taskhostw 299
NVIDIA Share 299
svchost 299
GoogleCrashHandler64 299
CompPkgSrv 299
svchost 299
SystemSettings 299
svchost 299
SecurityHealthService 5
explorer 299
TERA 299
CorsairGamingAudioCfgService64 299
svchost 299
svchost 299
svchost 299
conhost 299
MoUsoCoreWorker 299
svchost 299
svchost 299
svchost 299
svchost 299
lsass 299
chrome 299
chrome 299
svchost 299
mDNSResponder 299
SecurityHealthSystray 299
RuntimeBroker 299
services 5
chrome 299
System -2147467259
svchost 299
svchost 299
Idle -2147467259
Kaskorian1 Answer
From the docs:
Exceptions
Win32Exception
A 32-bit process is trying to access the modules of a 64-bit process.
Process.MainModule calls through eventually to OpenProcess on kernel32.dll. It seems that ERROR_PARTIAL_COPY is often caused by 32-bit processes trying to read info regarding 64-bit processes.
To fix this, compile your app as 64-bit.
But you may find your original problem easier to solve with Process.GetProcessesByName
CharliefaceUser contributions licensed under CC BY-SA 3.0