Answer Questions

• mistro.g Persisting a workflow containing the EmailActivity

  Hi, I used the EmailActivity in my workflow then I added the persistence service. My workflow get terminated when I start it with this exception : Exception {"Type 'System.Net.Mail.Attachment' in Assembly 'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable."} System.Exception {System.Workflow.Runtime.Hosting.PersistenceException} The EmailActivity could not be serialized !!! Is there any way to do that !! Thanks in advance. Sorry it's the Send Email Activity I got it from here Send Email Activity maybe they are the same And thanks to Matt I didn't mind that the issue was already threaded. ...Show All

• Price Brattin Can't debug workflow when workflow assembly is loaded directly into memory

  I have read through a bunch of other posts on debugging issues but could not find any info on this scenario. In our system, the workflows are executed in a windows service.  However, the workflow assemblies are stored in a database and then loaded directly into memory upon execution.  When running debug mode, the pdb files are also loaded into memory. I can set breakpoints in the code behind and the breakpoints are hit, but the code behind tells me that no symbols have been loaded, breakpoint will not be hit. I am running x86 on windows xp.  I am connecting my workflow project to the windows service, making sure to attach to Workflow Code.  If I copy the workflow dll and pdb files to the applications directory, ...Show All

• Dejan Kocijasevic Works in XP but not in Vista

  Hello, We include a root certificate with our installation that we try to install using a client configuration tool. This installs a trusted root, so that when a client activates our product, they get their own unique certificate that is trusted by our installed root. I have included the code that we use to install the root certificate, but it does not seem to work in Vista, as I get an Access Denied when I try to do the store.Add(cert) In XP, I did not originally have the StorePermission object, and as an administrator on the machine, this worked fine. We require an administrator to run the "utility" that installs the certificates before a user can run the application. In Vista, even as an adminstrator, we get the Ac ...Show All

• kastanienreis Ink Analysis and Input Supplement Released

  Ink Analysis and Input Supplement for the Windows XP Tablet PC Edition Software Development Kit 1.7 The Ink Analysis and Input Supplement for the MicrosoftR WindowsR XP Tablet PC Platform Software Development Kit (SDK) adds two new components to the Tablet PC development kit: *Ink Analysis APIs *A COM layer for the StylusInput API The Ink Analysis APIs combine ink classification and layout analysis with powerful handwriting recognition technology. With Ink Analysis, developers can create applications that understand and respond to ink in ways that are unique to Windows Tablet and Touch Technology. With a fully integrated COM layer for the StylusInput API, Microsoft Visual C++R and Microsoft Visual BasicR 6.0 develo ...Show All

• tradle Persistence Services and DTC

  I'm using a TransactionScope Activity that required me to add a Persistence Service to the runtime ( I understand this) However, when I add the SqlPersistence Service to my runtime, I started getting DTC errors. I'm running a WCF Service hitting the SqlPersistence DB on my local machine accessing data on a separate SQL Server box. Is it a requirement to have DTC enabled on my local machine and the SQL server Is this strictly because I don't have the my local SQL server and the network SQL Server linked Any help would be appreciated. Thanks! David, Yes, it is a requirement to enable DTC on both the SQL Server box as well as yours. The workflow runtime handles transactions internally through the .NET System.Transactions infras ...Show All

• GregMaxey How to create .ISO image file

  I want to create an .ISO file instead of burning an image to disc.  These are the steps I'm assuming I should take: CoCreateInstance to obtain an IFileSystemImage object Add files/folders to the image using IFsiDirectoryItem and IFsiFileItem Call IFileSystemImage::CreateResultImage to obtain an IFileSystemImageResult object Call IFileSystemImageResult::get_ImageStream to obtain an IStream object Call ::SHCreateStreamOnFile to create the new .ISO file, and obtain a second IStream object Use IStream::CopyTo to copy data from the stream obtained in step 4 to the stream obtained in step 5 Are there any problems with these steps   Any potential pitfalls I should be aware of   The Win32 docum ...Show All

• Shells Package Load Failure after installing VS Extensions for Workflow

  I saw this problem during the WF betas, but now I have a new machine with a clean install of VS2005. I installed the ".NET Framework 3", "Windows SDK for Vista", and then the "Visual Studio 2005 Extensions for Windows Workflow Foundation" (in that order). After installing these components, I receive the following error when I open Visual Studio: Microsoft Visual Studio Package Load Failure Package 'Microsoft.Workflow.VSDesigner.DesignerPackage, Microsoft.Wirkflow.VSDesigner, Version=3.0.0.0 Culture=neutral, PublicKeyToken=31bf3856ad364e35' has failed to load property. ... Would you like to disable loading this package in the future You may use 'devenv /resetskippkgs' to re-enable package loading. ...Show All

• omni100 About CSourceStream::fillbuffer

  Hi All, I am trying to stream data using the source filter derived from CSourceStream, this filter seems to be working fine in case of audio only and video only files but however when i try to stream an AV file 1.Video is not seen, only audio is heard. 2.There is no video sample occuring at the Fillbuffer i get only the audio samples. 3. Video and AUdio are out of sync. Can i get any inputs as to what mite be the problem. Regards Use the RTCP sender report to match the RTP times to a common NTP time. When you have the first packet to deliver, set a mapping from this NTP time to a stream time -- if you are doing this in Run mode rather than pause, you will want to call Stream ...Show All

• GethWho "Error binding to target method." in Activity.Clone ??

  We have a workflow with a while loop which is failing in the attempt to clone the contained SequenceActivity. It appears to be failing to FixUp the references to CodeActivity event handlers and CodeCondition event handlers. I can also reproduce the failure by Activity.Save() to memory stream followed by Activity.Load(). The only difference I see between the development environment where it works, and the server where it fails, is that .NET 1.1 and .NET 1.1 Hotfix were never installed on the server. John West Starz/Encore I am getting the same error. Do you start your workflow using reflection e.g Dictionary < string , object > args = new Dictionary < string , object & ...Show All

• tgbt Wimgapi.dll WimApplyImage Callback / Threading Problems (VB6)

  For the last few weeks we've been working on a wrapper library for Wimgapi.dll in VB6. This is to allow the WIM file to be used in our PE based OS image installation system. Sadly the system has to be written in VB6 to keep the deployed size very small but keep the GUI coding to a minimum (otherwise I wouldn't need to dust off my VB6 hat). Thre have been a couple of similar threads posted recently about how WimApplyImage can cause the VB6 IDE to hang or do strange things when using a callback function. We've also seen this problem and agree that it seems to be caused by WIMGAPI creating a new thread at the point it moves from restoring folders to restoring files. Any attempt to update the GUI or anything at all useful from the callb ...Show All

• wolfkrow Register dlls in Vista

  I am using a much modified version of the VB6 P&D wizard, calling DLLSelfRegister in VB6stkit.dll. Under Vista this fails to register the dlls unless the user turns off UAC before running the installer. How can I code it to get the OS to prompt for a temporary lifting of UAC or elevation of status I beg to differ. I can't see anywhere in that article saying that having setup in the name causes an elevation prompt. It explicitly names the word "installer" in the file description as one example and "patch" as part of the filename as another. The article also says that a manifest doesn't need to be embedded, it can be external, <filename>.exe.config, so that's another way t ...Show All

• gooon Vista install problem

  Hi, I recently tried to upgrade XP Pro to Windows Vista X32 business edition. I clicked on the Install Now button and it said please wait. After entering the Key,  a error  message stated  that ACPI  not found.. The XP Device Mgr shows ACPI enabled and working. ACPI is enabled in the Bios as well. I have heard that the HAL may not have ACPI enabled. The MB has the latest Bios that I can find.  I also saw somewhere to try to do a "clean" install without the Install Key but don't activate. Then do the upgrade install over the unactivated Vista. I am wondering if this will keep my installed applications in the Registry . I do not know what to do. Please help, I am just a teenager. . Spec ...Show All

• davros51 How to get(set) cursor position in my service before logon?

  Hello, I noticed that an interactive service cannot run in vista any more. This issue is good to security, but bad news for me using an interactive service. My service is simple and needs only 2 functions - one is getting cursor position and the other is setting cursor position. These 2 functions can be implemented through one other user application after user logon. But before user logon, how can I do this job Thank you in advance. Sweating Egg;; Hello Matthew. I appreciate your kind support. I think that in Session 0, the cursor position check API should be allowed for 3rd parties to use. It's primitive and essential. Egg ...Show All

• milkshake Design pattern for enlisting a "plain old API call" in a transaction?

  We have a third-party workflow server process that exposes a plain old managed .NET API with the following the following methods: 1. Connecting to the server 2. Setting datafields within the server 3. Causing the datafields to be updated within server 4. Closing the server We have a business object with a UpdateServer() method that accepts a collection of datafield values and calls the above methods to store them in the workflow server. We want to include the call to UpdateServer() amongst some database update calls. We need to have these calls to execute as a single transactions - i.e. the UpdateServer() and database updates are all executed; or they are all aborted/rolled back. In EnterpriseServices, I p ...Show All

• Jeff Green Tracking : Roles in State Machine Workflow

  Hi, I am implementing a tracking service for a state machine workflow in order to update user tasks list based on the Roles property specified in HandleExternalEvent/WebServiceInput activities. I am extending the TrackingService class in order update my task list when StateEventActivity is at Executing status or when in the case where there is a StateInitializationActivity is after that activity has closed. Anyway I am having problem getting the Roles property out of the HandleExternalEvent/WebServiceInput activities. On my first try, I get the WorkflowDefinition from the runtime, this does a clone of your current WorkflowInstance and the Role property doesn't get clone in this process. Another way I am thinking to do this is to use the Ac ...Show All