multithreading - What 4 threads are running under an empty new VCL forms application? -

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possible duplicate:
what other threads in default vcl application, , can named purpose?

when running new empty vcl forms application in delphi xe2 (32bit), see 4 threads running in task manager app. app requires @ least 1 thread, in case, other 3 threads? i'd have better understanding of threads vcl forms application runs default. thought possibly had fact running in debug mode rad studio, launched exe self, , had 4 threads running. tried compiling under "release" config (thus disabling compiling debug info) , there still 4 threads.

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to determine source of threads, can inspect start address of threads using tool process explorer or process hacker.

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in case example can see

  • ntdll.dll!tpcallbackindependent+0x????? part of windows threadpool api.
  • ntdll.dll!rtlmovememory+0x????? call rtlmovememory winapi function.
  • project??.exe+0x????? main thread of app.

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