最近接到用户的投诉，在Windows 7 32位的机器上，UMDF驱动频繁崩溃，关键是SetUnhandledExceptionFilter 设置的异常过滤竟然一丁点用都没有，查询了半天，才注意到UMDF框架把UnhandledException接管了，你完全是无力反抗。
然后去MSDN上查询，根据Determining Why the Reflector Terminated the Host Process微软文档，WER会在“%windir%\system32\LogFiles\WUDF”目录下面生成DUMP文件，测试之后发现，是否生成完全依赖WER的心情，捣鼓到后来，干脆完全不生成DUMP文件了，另外他偶尔生成的也都是MiniDump ，作用有限。“Users\All Users\Microsoft\Windows\WER\ReportQueue”目录下面的报告数据，也是时有时无，阴晴不定。
继续Google，微软文档 Collecting User-Mode Dumps 设置如下的注册表
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps]
"DumpType"=dword:00000001
"DumpCount"=dword:0000000A
"DumpFolder"="D:\\Temp"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\Windows Error Reporting\LocalDumps]
"DumpType"=dword:00000001
"DumpCount"=dword:0000000A
"DumpFolder"="D:\\Temp"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\Windows Error Reporting\LocalDumps]
"DumpType"=dword:00000001
"DumpCount"=dword:0000000A
"DumpFolder"="D:\\Temp"
这样设置之后，正常的应用都可以在D:\Temp 下面生成崩溃记录，但是WUDFHost.exe 就是不能生成崩溃DUMP，貌似是WUDFHost.exe 用其他低权限用户账户运行，导致没办法生成转储文件。
继续Google，ProcDump进入视野，着实是个好的工具软件，非常好用。于是写了个批处理文件来跟踪WUDFHost.exe的异常。
procdump -ma -e WUDFHost.exe
应用崩溃的时候，会在当前目录下面生产对应的.dmp文件。
本地下载
下面为简单的用法例子
Using ProcDump
usage: procdump [-a] [[-c|-cl CPU usage] [-u] [-s seconds]] [-n exceeds] [-e [1 [-b]] [-f <filter,...>] [-g] [-h] [-l] [-m|-ml commit usage] [-ma | -mp] [-o] [-p|-pl counter threshold] [-r] [-t] [-d <callback DLL>] [-64] <[-w] <process name or service name or PID> [dump file] | -i <dump file> | -u | -x <dump file> <image file> [arguments] >] [-? [ -e]
-a Avoid outage. Requires -r. If the trigger will cause the target to suspend for a prolonged time due to an exceeded concurrent dump limit, the trigger will be skipped.
-b Treat debug breakpoints as exceptions (otherwise ignore them).
-c CPU threshold at which to create a dump of the process.
-cl CPU threshold below which to create a dump of the process.
-d Invoke the minidump callback routine named MiniDumpCallbackRoutine of the specified DLL.
-e Write a dump when the process encounters an unhandled exception. Include the 1 to create dump on first chance exceptions.
-f Filter the first chance exceptions. Wildcards (*) are supported. To just display the names without dumping, use a blank ("") filter.
-g Run as a native debugger in a managed process (no interop).
-h Write dump if process has a hung window (does not respond to window messages for at least 5 seconds).
-i Install ProcDump as the AeDebug postmortem debugger. Only -ma, -mp, -d and -r are supported as additional options.
-l Display the debug logging of the process.
-m Memory commit threshold in MB at which to create a dump.
-ma Write a dump file with all process memory. The default dump format only includes thread and handle information.
-ml Trigger when memory commit drops below specified MB value.
-mp Write a dump file with thread and handle information, and all read/write process memory. To minimize dump size, memory areas larger than 512MB are searched for, and if found, the largest area is excluded. A memory area is the collection of same sized memory allocation areas. The removal of this (cache) memory reduces Exchange and SQL Server dumps by over 90%.
-n Number of dumps to write before exiting.
-o Overwrite an existing dump file.
-p Trigger on the specified performance counter when the threshold is exceeded. Note: to specify a process counter when there are multiple instances of the process running, use the process ID with the following syntax: "\Process(<name>_<pid>)\counter"
-pl Trigger when performance counter falls below the specified value.
-r
Dump using a clone. Concurrent limit is optional (default 1, max 5).
CAUTION: a high concurrency value may impact system performance.
Windows 7 : Uses Reflection. OS doesn't support -e.
Windows 8.0 : Uses Reflection. OS doesn't support -e.
Windows 8.1+: Uses PSS. All trigger types are supported.
-s Consecutive seconds before dump is written (default is 10).
-t Write a dump when the process terminates.
-u Treat CPU usage relative to a single core (used with -c).
As the only option, Uninstalls ProcDump as the postmortem debugger.
-w Wait for the specified process to launch if it's not running.
-x Launch the specified image with optional arguments. If it is a Store Application or Package, ProcDump will start on the next activation (only).
-64 By default ProcDump will capture a 32-bit dump of a 32-bit process when running on 64-bit Windows. This option overrides to create a 64-bit dump. Only use for WOW64 subsystem debugging.
-? Use -? -e to see example command lines.
If you omit the dump file name, it defaults to <processname>_<datetime>.dmp.
Use the -accepteula command line option to automatically accept the Sysinternals license agreement.
Examples
Write a mini dump of a process named 'notepad' (only one match can exist):
C:\>procdump notepad
Write a full dump of a process with PID '4572':
C:\>procdump -ma 4572
Write 3 mini dumps 5 seconds apart of a process named 'notepad':
C:\>procdump -s 5 -n 3 notepad
Write up to 3 mini dumps of a process named 'consume' when it exceeds 20% CPU usage for five seconds:
C:\>procdump -c 20 -s 5 -n 3 consume
Write a mini dump for a process named 'hang.exe' when one of it's Windows is unresponsive for more than 5 seconds:
C:\>procdump -h hang.exe hungwindow.dmp
Write a mini dump of a process named 'outlook' when total system CPU usage exceeds 20% for 10 seconds:
C:\>procdump outlook -p "\Processor(_Total)\% Processor Time" 20
Write a full dump of a process named 'outlook' when Outlook's handle count exceeds 10,000:
C:\>procdump -ma outlook -p "\Process(Outlook)\Handle Count" 10000
Write a MiniPlus dump of the Microsoft Exchange Information Store when it has an unhandled exception:
C:\>procdump -mp -e store.exe
Display without writing a dump, the exception codes/names of w3wp.exe:
C:\>procdump -e 1 -f "" w3wp.exe
Write a mini dump of w3wp.exe if an exception's code/name contains 'NotFound':
C:\>procdump -e 1 -f NotFound w3wp.exe
Launch a process and then monitor it for exceptions:
C:\>procdump -e 1 -f "" -x c:\dumps consume.exe
Register for launch, and attempt to activate, a modern 'application'. A new ProcDump instance will start when it activated to monitor for exceptions:
C:\>procdump -e 1 -f ""
-x c:\dumps Microsoft.BingMaps_8wekyb3d8bbwe!AppexMaps
Register for launch of a modern 'package'. A new ProcDump instance will start when it is (manually) activated to monitor for exceptions:
C:\>procdump -e 1 -f ""
-x c:\dumps Microsoft.BingMaps_1.2.0.136_x64__8wekyb3d8bbwe
Register as the Just-in-Time (AeDebug) debugger. Makes full dumps in c:\dumps.
C:\>procdump -ma -i c:\dumps
See a list of example command lines (the examples are listed above):
C:\>procdump -? -e
