Greetings.

I have several Windows services/applications that were written in Visual Studio.

There are hardcoded references to registry entries that the services/applications use to get database connections, queue locations, et cetera.

Here's an example of an existing variable from our code that gets a registry value that the app uses to get a root reference for some setting values:

private const string REG_KEY_SERVICE = @"Software\Company\App\AppName";

So, that being said, when our apps/services were installed on a 32 bit OS, there was no problem, however when the same apps/services are installed on a 64 bit OS, the registry settings are set here:

Software\Wow6432Node\Company\App\AppName

Since these settings are not in our configuration logic, we'd need to do a code change to something like this:

private const string REG_KEY_SERVICE = @"Software\Wow6432Node\Company\App\AppName";

This is not something that we want to do since it involves a version change and all of the change control processes that goes along with that.

To get around having to make a version change,  on our dev environment, we are copying the registry entries from: 

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432\Company\App\AppName

TO

HKEY_LOCAL_MACHINE\SOFTWARE\Company\App\AppName

My question: Is there a risk with this workaround and is this advisable?

Thanks.

doug

I'm using the .NET System.IO.Ports.SerialPort using the BaseStream as suggested in this post If you must use .NET System.IO.Ports.SerialPort

But when I try to close the port or the baseStream, an System.InvalidOperationException is raised saying "The BaseStream is only available when the port is open"

This is my code:

      private void ActionStarted()
        {
            //ajusta el puerto
            setupSerial();

            serial.Open();  //conecta al plc
            byte[] buffer = new byte[15];
            Action kickoffRead = null;

            if (serial.IsOpen) //si esta abierto el puerto hace todo esto
            {
                kickoffRead = delegate()
                {
                    serial.BaseStream.BeginRead(buffer, 0, buffer.Length,
                        delegate(IAsyncResult ar)
                        {
                            try
                            {
                                int actualLength = serial.BaseStream.EndRead(ar);
                                byte[] received = new byte[actualLength];
                                Buffer.BlockCopy(buffer, 0, received, 0, actualLength);
                                raiseAppSerialDataEvent(received);
                            }
                            catch
                            {

                            }

                            kickoffRead();

                        }, null);
                };
                kickoffRead();
            }

        }

and the error occurrs when I try to close the window / port / basestream here, 

   private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            serial.BaseStream.Flush();
            serial.BaseStream.Close();
            serial.Close();
        }

I read somewhere that the serial port should be close on a different thread but I can't find that, so any thoughts??

Thanks!!

I enjoy reading through the comment sections to articles in various news sources.   However, the good comments are often hidden in the over abundance of spam and mind-numbing commentary.  I would like to write an application that will selectively extract certain comments that I feel will most likely offer informative content (i.e. to reduce the time and my effort to find comments worth reading).   For example, mind-numbing comments which I wish to ignore general consist of single sentences and it is not unusual for a comment section to have hundreds if not thousands of them.  Conversely, many informative comments are much longer in length (e.g. two or more paragraphs). 

I am proficient in developing desk top applications in a rich client environment but have only minimal experience working with web-related applications.   As such, I am looking for suggestions on how I should approach this small project and work through it.

1) Is anyone aware of existing projects or sample source code which parses the contents of web pages using .NET?

2) It is possible to view the source of a browser web page.  For example, in IE10 I from the main menu [View][Source].   The source includes the text of the article but none of the comments.  That is, the actual comments are not included in the rendered HTML (e.g. view the source for http://www.cbc.ca/news/business/target-s-launch-into-canada-a-multifaceted-failure-1.2901789).   So how can I obtain the comments so that I can then filter the ones I wish to review and ignore all the others.

If I should be posting this request in another forum then please let me know.

ThanX

Ian

Dear all,

our customer runs SCCM2012R2 to deploy update packages over night (. They use the scheduler to deploy the updates over night outside of business hours.

This customer wants us to write a small.net application that reads this scheduled timing from the SCCM settings and writes that into a protocol file for another system there are using. Every time when they enter a new scheduled timing or change the current on our app should be triggered to sync the protocol file.

I know that I ask for an extremely deep SCCM know-how, but I hope there are few gurus out there who can help me – or point me to a place / example / source where to start.

many thanks!

Hello All ,

I am trying to call some power shell commands from C# using System.Management.Automation , For example I am trying to execute the Lync server cmdlet "get-csdialplan" , I can get references of Type PSObject but I know that this cmdlet returns Objects of type Microsoft.Rtc.Management.WritableConfig.Policy.Voice.LocationProfile , I need to access the returned object as they are of this return type rather than as PSObject . From where can I get the assemblies containing those returned types for Lync ?

Best Regards ,

We have migrated our .net 2.0 application to .net 4.0 framework. We make TCP,HTTP requests & web pages, SOAP calls from our WPF based application to the server. From our statistics collected though our client base, our 4.0 TCP request/responses are ~0.20 ms slower than 2.0 TCP calls and web requests are slower upto one sec. The above listed article -https://support.microsoft.com/kb/2583681

says that the System.net API in 4.0 are slower than 2.0 API while using Automatic proxy detection. Is there any hot fix available for this issue? Has this been fixed in .net 4.5 or the same issue exists in .net 4.5 too?

I know about Managed DirectX, XNA that are no longer supported.

I know about 3d party libraries.

I am talking about official support.

Hi,

One of my windows service is using a third party component. I have an Interop.myobject.dll generated from the .tlb file from the third party client. It is working fine in my development machine, but when deploy it to 32-bit server I am getting this error:

Retrieving the COM class factory for component with CLSID {} failed due to the following error: 800703fa.

I checked the registry to see the Class ID. It exists and points to path of the .exe. This is making me frustated me for few days now.

Please help.

I am rewriting some backup/restore code in one of our products that used to use Compound Documents. I am evaluating using ZipPackage in the new code as it's built into the framework. Two questions I have that I can't seem to find answers to.

1. Are there any size limits in dealing with ZipPackage? We have clients that have backups that are 4GB or more. Huge backups. Are there any explicit limits to dealing with data in the ZipPackage classes?

2. When exactly does compression take place? For example let's say I create 3 PackageParts, do they get compressed on the fly somehow? Are all three compressed when I call Flush()? Or on Close()? I just can't find any specifics as to when the compression takes place.

I am writing external libriaries to account program.

I am sending them by mail to customer, every time I send them by mail customer gets corrupted DLL. If I copy DLL to flash drive and then copy DLL to customer computer everything is fine, and DLL works. Can anyone explain me why DLL gets corrupted by sending them by mial? DropBox gives the same result, DLL gets corrupted.

We have unmanaged application which loads unmanaged DLLs whereas one of the DLL also loads a Mediator DLL which supports and loads managed code(C#).
After launch of application, Mediator DLL initializes managed code and further managed code creates a AppDomain, loads  plugins and attempts to unload the AppDomain.
The statement AppDomain.UnLoad() hangs on Language Windows 8.x OS (tested on German and Japanese).
Below is the sample code
           RemoteClassLoader instanceloader = null;
            AppDomain LoaderAppDomain = null;
             LoaderAppDomain = AppDomain.CreateDomain("Loader Domain");

           instanceloader = (RemoteClassLoader)LoaderAppDomain.CreateInstanceAndUnwrap(this.GetType().Assembly.FullName, typeof(RemoteClassLoader).ToString());
             if (LoaderAppDomain != null)
            {
                   AppDomain.Unload(LoaderAppDomain);
            }

Above code has been working since Windows XP in english as well as language OS but started to hang with Windows 8.x language OS (difference here is, we have moved to .net framework 4.5.1, no issues with 3.5 framework).

On Analyzing the dump using WinDBG, there is a possibility of OS thread(whntnotifychangedirectoryfile)

Following are the details of dump.
0:000> !analyze -v
*******************************************************************************
*                                                                             *
*                        Exception Analysis                                   *
*                                                                             *
*******************************************************************************

*** ERROR: Symbol file could not be found.  Defaulted to export symbols for <exe name>.exe - 
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for DOMXT.dll - 
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for omniORB413_vc10_rt.dll - 
GetUrlPageData2 (WinHttp) failed: 12029.

FAULTING_IP: 
+ca03d1a6b0
00000000`00000000 ??              ???

EXCEPTION_RECORD:  ffffffffffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 0000000000000000
   ExceptionCode: 80000007 (Wake debugger)
  ExceptionFlags: 00000000
NumberParameters: 0

CONTEXT:  0000000000000000 -- (.cxr 0x0;r)
rax=00009bcdc4f389b2 rbx=0000000000000001 rcx=0000000000001004
rdx=0000000000000001 rsi=0000000000000002 rdi=0000000000000002
rip=0000000077c82772 rsp=000000000008ee08 rbp=000000000018d91c
 r8=0000000000000004  r9=0000000000000006 r10=0000000077bfb980
r11=000000000018d978 r12=00000000fffdc000 r13=000000000008fdb0
r14=000000000018d79c r15=0000000077c81f30
iopl=0         nv up ei pl nz na po nc
cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00200206
wow64cpu!CpupSyscallStub+0x2:
00000000`77c82772 c3              ret

BUGCHECK_STR:  80000007

DEFAULT_BUCKET_ID:  APPLICATION_HANG

PROCESS_NAME:  <exe name>.exe

ERROR_CODE: (NTSTATUS) 0x80000007 - {Kerneldebugger aktiviert}  Der Systemdebugger wurde von einem Interrupt aktiviert.

EXCEPTION_CODE: (HRESULT) 0x80000007 (2147483655) - Vorgang abgebrochen

NTGLOBALFLAG:  0

APPLICATION_VERIFIER_FLAGS:  0

APP:  quarkxpress.exe

ANALYSIS_VERSION: 6.3.9600.17298 (debuggers(dbg).141024-1500) amd64fre

MANAGED_STACK: !dumpstack -EE
No export dumpstack found

DERIVED_WAIT_CHAIN: 

Dl Eid Cid     WaitType
-- --- ------- --------------------------
   0   e20.790 Speculated (Triage)    -->
   1   e20.458 Idle Thread           

WAIT_CHAIN_COMMAND:  ~0s;k;;~1s;k;;

BLOCKING_THREAD:  0000000000000458

PRIMARY_PROBLEM_CLASS:  APPLICATION_HANG

LAST_CONTROL_TRANSFER:  from 0000000077bd73ff to 00007ffeb2eb757a

FAULTING_THREAD:  0000000000000001

STACK_TEXT:  
00000000`0346e808 00000000`77bd73ff : 00000005`00000001 00000000`00000000 00000000`0346f0d0 00000000`0346e7b0 : ntdll!NtNotifyChangeDirectoryFile+0xa
00000000`0346e810 00000000`77bcbb64 : 00000000`0512bef4 00000000`fffdb000 00000000`77bd738c 00000000`fffd9000 : wow64!whNtNotifyChangeDirectoryFile+0x73
00000000`0346e880 00000000`77c821e5 : 00000023`77ccc14c 00000000`00000023 00000000`00000000 00000000`0512fff0 : wow64!Wow64SystemServiceEx+0xd4
00000000`0346f130 00000000`77bd323a : 00000000`00000000 00000000`77c81503 00000000`00000000 00000000`77bd3420 : wow64cpu!ServiceNoTurbo+0xb
00000000`0346f1e0 00000000`77bd317e : 00000000`00000000 00000000`00000000 00000000`0346fd30 00000000`0346f830 : wow64!RunCpuSimulation+0xa
00000000`0346f230 00007ffe`b2e47004 : 00000000`00000000 00000000`00000000 00000000`fffdf000 00000000`00000000 : wow64!Wow64LdrpInitialize+0x172
00000000`0346f770 00007ffe`b2e46eda : 00000000`0346f830 00000000`00000000 00000000`00000000 00000000`fffdf000 : ntdll!_LdrpInitialize+0xd8
00000000`0346f7e0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!LdrInitializeThunk+0xe

FOLLOWUP_IP: 
wow64!whNtNotifyChangeDirectoryFile+73
00000000`77bd73ff 4885ff          test    rdi,rdi

SYMBOL_STACK_INDEX:  1

SYMBOL_NAME:  wow64!whNtNotifyChangeDirectoryFile+73

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: wow64

IMAGE_NAME:  wow64.dll

DEBUG_FLR_IMAGE_TIMESTAMP:  5215f8c5

STACK_COMMAND:  ~1s ; kb

BUCKET_ID:  80000007_wow64!whNtNotifyChangeDirectoryFile+73

FAILURE_BUCKET_ID:  APPLICATION_HANG_80000007_wow64.dll!whNtNotifyChangeDirectoryFile

ANALYSIS_SOURCE:  UM

FAILURE_ID_HASH_STRING:  um:application_hang_80000007_wow64.dll!whntnotifychangedirectoryfile

FAILURE_ID_HASH:  {02742019-f52a-83db-ef20-8723a2174738}

0:000> ~
.  0  Id: e20.790 Suspend: 1 Teb: 00000000`fffdc000 Unfrozen
   1  Id: e20.458 Suspend: 1 Teb: 00000000`fffd9000 Unfrozen
   2  Id: e20.a18 Suspend: 1 Teb: 00000000`fffd6000 Unfrozen
   3  Id: e20.db4 Suspend: 1 Teb: 00000000`ffea4000 Unfrozen
   4  Id: e20.c38 Suspend: 1 Teb: 00000000`ffea1000 Unfrozen
   5  Id: e20.ab0 Suspend: 1 Teb: 00000000`ffe9e000 Unfrozen
   6  Id: e20.3f4 Suspend: 1 Teb: 00000000`ffe95000 Unfrozen
   7  Id: e20.ec0 Suspend: 1 Teb: 00000000`ffe92000 Unfrozen
   8  Id: e20.a54 Suspend: 1 Teb: 00000000`ffe8f000 Unfrozen
   9  Id: e20.9bc Suspend: 1 Teb: 00000000`ffe8c000 Unfrozen
  10  Id: e20.f4c Suspend: 1 Teb: 00000000`ffe89000 Unfrozen
  11  Id: e20.fd0 Suspend: 1 Teb: 00000000`ffe86000 Unfrozen
  12  Id: e20.5bc Suspend: 1 Teb: 00000000`ffe7d000 Unfrozen
  13  Id: e20.f1c Suspend: 1 Teb: 00000000`ffe7a000 Unfrozen
  14  Id: e20.bf0 Suspend: 1 Teb: 00000000`ffe77000 Unfrozen
  15  Id: e20.d3c Suspend: 1 Teb: 00000000`ffe74000 Unfrozen
  16  Id: e20.ff0 Suspend: 1 Teb: 00000000`ffead000 Unfrozen
  17  Id: e20.930 Suspend: 1 Teb: 00000000`ffeaa000 Unfrozen

Followup: MachineOwner

Did anybody face similar kind of issue ? I will appreciate inputs to analyze this issue.

Previously posted on

https://social.technet.microsoft.com/Forums/windows/en-US/d051e8d2-7ccc-473a-b1ed-d2621203feff/hang-on-appdomainunload-only-on-windows-8x-language-os-ie-german-japanese-etc?forum=w8itproappcompat

Hi all,

I cannot write log data for my windows service in to a text log file. I can see only starting and stopping of the service. Can anybody help me on how to write to log file. The service was migrated from win2003 server to win2012 server. It is working fine in win2003 server but failing in win2012 server. Please help me on this.
Many thanks in advance.

sammy

How to do URL rewriting in ASP .Net 3.5 framework.

My Current URL is http://www.abc.com/Products.aspx?mid=192  and

I want URL rewrite in below pattern

http://www.abc.com/products/product-category/productname/192

Google has cached current URL, so how can I redirect it to new rewrited  URL.

Please advice.

Thanks in advance.

Hi All,

I have xml in below format 

<Parent>

 <ABC:ChildS>
      <ABC:Child name="UDF01" type="SELECTION" code="1">Value1</ABC:Child>
      <ABC:Child name="UDF02" type="SELECTION" code="Test2">Value2</ABC:Child>

    </ABC:ChildS>

</Parent>

Here i need to fetch the Value1 or Value2 based on setting. I need the Xpath value to fetch Value1  and Value2 

I'm not sure what is the proper feedback channel for the Microsoft.Diagnostics.Tracing.EventRegister 1.0.26, Microsoft.Diagnostics.Tracing.EventSource 1.0.26, and Microsoft.Diagnostics.Tracing.EventSource.Redist 1.0.26 NuGet packages, so I'll just post these here.

We've got a service that uses those packages for writing events to Windows Event Log. It thus needs a provider manifest with channels and such. The messages and maps are localized to a few languages.

• When the project is being built on .NET Framework 4.0 (not 4.5.1), eventRegister.exe does not find the satellite assemblies that contain the localized strings, so it silently omits the corresponding <resources> elements from the manifest. The -ReferencePath option of eventRegister.exe does not solve the problem because it works by adding a handler for the AppDomain.ReflectionOnlyAssemblyResolve event and ResourceManager does not use reflection-only loads. Workaround: Add a custom target that copies the satellite assemblies to subdirectories of the directory that contains eventRegister.exe.
• The CreateEtwManifestsAndRegDllsCore target in Microsoft.Diagnostics.Tracing.EventRegister.targets has Inputs="$(AssmName)" and does not declare any dependency on satellite assemblies.  If I edit only *.resx files and build the project, then Visual Studio compiles only the satellite assemblies and not the main assembly, and it skips the CreateEtwManifestsAndRegDllsCore target because the output files are already newer than the main assembly. The *.dll and *.man files generated by this target will then not contain the updated translations from the *.resx files. Workaround: Before building the project, touch some source file that is compiled to the main assembly.
• When I add parameters to an event that was already defined in a previous version of the software, I'd like to keep the original definition as well, so that Event Viewer can still format the events logged by the previous version. To do that, I'd define another method with the same eventId but a higher EventAttribute.Version, and perhaps rename the original method so that the localization resources don't clash. However, if I try that, then eventRegister.exe fails and says the event ID is already in use.
• If I define multiple events with the same Task and the same Opcode, then eventRegister.exe fails ("Event a (with ID b) has the same task/opcode pair as event c (with ID d)"). Why this restriction?
  
• There seems to be no way to define task-specific opcodes, so all opcodes consume the same 8-bit space.
  
• There seems to be no way to specify an OutputType (e.g. win:Win32Error) for a parameter of an event.
• There is a good error message "a property insert in the event message is referencing a non-existent property" if I specify e.g. "{9}" in EventAttribute.Message and the method does not have that many parameters. However, if I make the same mistake in the resources to which EventSourceAttribute.LocalizationResources refer, then there is no warning. I think errors in the *.resx files are even more likely than in the *.cs file, because the list of parameters is not immediately visible.
• When an event has many parameters, it is difficult to verify that all the "{number}" placeholders refer to the correct parameters. Because they get converted to "%number" at build time anyway, it might make sense to allow "{parameterName}" as well, both in EventAttribute.Message and in resource files.
  

Hi All,

While doing cross thread communication, i am getting System.ArgumentException with Error message as 'Parameter is not valid' when call is made on the control.invoke(delegate method, parama object[]).

I have checked the parameters, all parameters look good.

Please share your views on this.

Hi,

When I try to run the .NET MVC3 application I am getting the below exception. But the same application is working fine earlier.

Method not found: 'System.Web.Http.Services.DependencyResolver System.Web.Http.HttpConfiguration.get_ServiceResolver()'.

I am using the System.Web.Http version is 4.0 and System.Web.MVC version is 3.0.
Please help me to resolve this issue.

Thanks & Regards,

Ram Tummala.