The service seems to be hung, restart does not help.
BOINC manager cannot connect to the service either.

in stdoutdae.txt log file last session looks like:
StartServiceCtrlDispatcher being called.
This may take several seconds. Please wait.
31-Aug-2011 16:47:13 [---] Starting BOINC client version 6.12.33 for windows_x86_64
31-Aug-2011 16:47:13 [---] log flags: file_xfer, sched_ops, task
31-Aug-2011 16:47:13 [---] Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.5
31-Aug-2011 16:47:13 [---] Running as a daemon
31-Aug-2011 16:47:13 [---] Data directory: C:\misc\Program Files\BOINC
31-Aug-2011 16:47:13 [---] Running under account boinc_master
31-Aug-2011 16:47:13 [---] Processor: 4 GenuineIntel Intel(R) Core(TM) i5 CPU 760 @ 2.80GHz [Family 6 Model 30 Stepping 5]
31-Aug-2011 16:47:13 [---] Processor: 256.00 KB cache
31-Aug-2011 16:47:13 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 syscall nx lm vmx smx tm2 popcnt pbe
31-Aug-2011 16:47:13 [---] OS: Microsoft Windows Server 2008 "R2": Enterprise x64 Edition, Service Pack 1, (06.01.7601.00)
31-Aug-2011 16:47:13 [---] Memory: 8.00 GB physical, 24.00 GB virtual
31-Aug-2011 16:47:13 [---] Disk: 265.66 GB total, 254.78 GB free
(no other lines for hours)

but the first session was:
30-Aug-2011 14:44:33 [---] Starting BOINC client version 6.12.33 for windows_x86_64
30-Aug-2011 14:44:33 [---] log flags: file_xfer, sched_ops, task
30-Aug-2011 14:44:33 [---] Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.5
30-Aug-2011 14:44:33 [---] Data directory: C:\misc\Program Files\BOINC
30-Aug-2011 14:44:33 [---] Running under account Administrator
30-Aug-2011 14:44:33 [---] Processor: 4 GenuineIntel Intel(R) Core(TM) i5 CPU 760 @ 2.80GHz [Family 6 Model 30 Stepping 5]
30-Aug-2011 14:44:33 [---] Processor: 256.00 KB cache
30-Aug-2011 14:44:33 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 syscall nx lm vmx smx tm2 popcnt pbe
30-Aug-2011 14:44:33 [---] OS: Microsoft Windows Server 2008 "R2": Enterprise x64 Edition, Service Pack 1, (06.01.7601.00)
30-Aug-2011 14:44:33 [---] Memory: 8.00 GB physical, 15.99 GB virtual
30-Aug-2011 14:44:33 [---] Disk: 265.66 GB total, 250.68 GB free
30-Aug-2011 14:44:33 [---] Local time is UTC -7 hours
30-Aug-2011 14:44:33 [---] No usable GPUs found
30-Aug-2011 14:44:33 [---] No general preferences found - using BOINC defaults
30-Aug-2011 14:44:33 [---] Preferences:
30-Aug-2011 14:44:33 [---] max memory usage when active: 4095.03MB
30-Aug-2011 14:44:33 [---] max memory usage when idle: 7371.05MB
30-Aug-2011 14:44:33 [---] max disk usage: 10.00GB
30-Aug-2011 14:44:33 [---] don't use GPU while active
30-Aug-2011 14:44:33 [---] suspend work if non-BOINC CPU load exceeds 25 %
30-Aug-2011 14:44:33 [---] (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
30-Aug-2011 14:44:33 [---] Not using a proxy
30-Aug-2011 14:44:33 [---] This computer is not attached to any projects
30-Aug-2011 14:44:33 [---] Visit http://boinc.berkeley.edu for instructions
Initialization completedetc...

Is the boinc process still running (hung) or has it vanished from task manager display?

Are there any GPUs installed to that machine?

Gruß,
Gundolf

---

Computer sind nicht alles im Leben. (Kleiner Scherz)

I see that your first time (log) states that BOINC wasn't installed as a service. Did you uninstall & reinstall BOINC and made the choice to install as a protected application execution mode?
Did you reboot after that installation, to finalize the making of the BOINC limited user accounts and groups?
Or did you make a service installation from the regular installation through a 3rd party app?

Is that machine a domain controller?
For if it is, BOINC 6 is incompatible with DCs.

---

Is the boinc process still running (hung) or has it vanished from task manager display?

Yeap

Are there any GPUs installed to that machine?

radeon 5400

I see that your first time (log) states that BOINC wasn't installed as a service. Did you uninstall & reinstall BOINC and made the choice to install as a protected application execution mode?

yes

Did you reboot after that installation, to finalize the making of the BOINC limited user accounts and groups?

yes

Or did you make a service installation from the regular installation through a 3rd party app?

I've installed it with a binary downloaded from this site.

Is that machine a domain controller?
For if it is, BOINC 6 is incompatible with DCs.

It is not.
Sorry, I thought, after new installation the log has been purged, so I copied the first session.

here is a session with boinc_master user:

StartServiceCtrlDispatcher being called.
This may take several seconds. Please wait.
31-Aug-2011 14:59:24 [---] Starting BOINC client version 6.12.33 for windows_x86_64
31-Aug-2011 14:59:24 [---] log flags: file_xfer, sched_ops, task
31-Aug-2011 14:59:24 [---] Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.5
31-Aug-2011 14:59:24 [---] Running as a daemon
31-Aug-2011 14:59:24 [---] Data directory: C:\misc\Program Files\BOINC
31-Aug-2011 14:59:24 [---] Running under account boinc_master
31-Aug-2011 14:59:24 [---] Processor: 4 GenuineIntel Intel(R) Core(TM) i5 CPU 760 @ 2.80GHz [Family 6 Model 30 Stepping 5]
31-Aug-2011 14:59:24 [---] Processor: 256.00 KB cache
31-Aug-2011 14:59:24 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 syscall nx lm vmx smx tm2 popcnt pbe
31-Aug-2011 14:59:24 [---] OS: Microsoft Windows Server 2008 "R2": Enterprise x64 Edition, Service Pack 1, (06.01.7601.00)
31-Aug-2011 14:59:24 [---] Memory: 8.00 GB physical, 24.00 GB virtual
31-Aug-2011 14:59:24 [---] Disk: 265.66 GB total, 254.67 GB free
31-Aug-2011 14:59:24 [---] Local time is UTC +4 hours
31-Aug-2011 14:59:24 [---] No usable GPUs found
31-Aug-2011 14:59:24 [rosetta@home] URL http://boinc.bakerlab.org/rosetta/; Computer ID not assigned yet; resource share 100
31-Aug-2011 14:59:24 [climateprediction.net] URL http://climateprediction.net/; Computer ID not assigned yet; resource share 100
31-Aug-2011 14:59:24 [Einstein@Home] URL http://einstein.phys.uwm.edu/; Computer ID not assigned yet; resource share 100
31-Aug-2011 14:59:24 [---] General prefs: from http://www.gpugrid.net/ (last modified 01-Aug-2009 00:23:58)
31-Aug-2011 14:59:24 [---] Host location: none
31-Aug-2011 14:59:24 [---] General prefs: using your defaults
31-Aug-2011 14:59:24 [---] Preferences:
31-Aug-2011 14:59:24 [---] max memory usage when active: 4095.03MB
31-Aug-2011 14:59:24 [---] max memory usage when idle: 7371.05MB
31-Aug-2011 14:59:24 [---] max disk usage: 100.00GB
31-Aug-2011 14:59:24 [---] suspend work if non-BOINC CPU load exceeds 25 %
31-Aug-2011 14:59:24 [---] (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
31-Aug-2011 14:59:24 [---] Not using a proxy
31-Aug-2011 14:59:35 [---] Running CPU benchmarks
31-Aug-2011 14:59:35 [---] Suspending computation - CPU benchmarks in progress
etc... (not hung)

Can you please post the contents of your global_prefs.xml file (you can open it up with Notepad, no need for an XML reader), and if it exists, your global_prefs_override.xml file?

You can find these in your BOINC Data directory, which according to you log is at C:\misc\Program Files\BOINC

---

<global_preferences>
<source_project>http://www.gpugrid.net/</source_project>
<source_scheduler>http://www.ps3grid.net/PS3GRID_cgi/cgi</source_scheduler>
<mod_time>1249071838</mod_time>
<run_on_batteries>0</run_on_batteries>
<run_if_user_active>1</run_if_user_active>
<run_gpu_if_user_active>1</run_gpu_if_user_active>
<idle_time_to_run>3</idle_time_to_run>
<suspend_if_no_recent_input>0</suspend_if_no_recent_input>
<cpu_scheduling_period_minutes>180</cpu_scheduling_period_minutes>
<hangup_if_dialed>0</hangup_if_dialed>
<work_buf_min_days>0</work_buf_min_days>
<work_buf_additional_days>0.25</work_buf_additional_days>
<max_cpus>16</max_cpus>
<max_ncpus_pct>100</max_ncpus_pct>
<cpu_usage_limit>100</cpu_usage_limit>
<disk_interval>60</disk_interval>
<disk_max_used_gb>100</disk_max_used_gb>
<disk_max_used_pct>50</disk_max_used_pct>
<disk_min_free_gb>0.001</disk_min_free_gb>
<vm_max_used_pct>75</vm_max_used_pct>
<ram_max_used_busy_pct>50</ram_max_used_busy_pct>
<ram_max_used_idle_pct>90</ram_max_used_idle_pct>
<max_bytes_sec_down>0</max_bytes_sec_down>
<max_bytes_sec_up>0</max_bytes_sec_up>
<dont_verify_images>0</dont_verify_images>
</global_preferences>