Differences between signed and unsigned dlls

Hi guys, I am a real newbie on 64-Bit progr. so my question might sound a little stupid. I have a VB.NET project which refered to a 32-Bit dll via COM-Interop. I migrated the project and the COM invocation does not work anymore. I tried several compiler settings (anyCPU, x86) but nothing helped. Then I found in my old C# book a method called DllImport (System.Runtime.InteropServices) I declared the dll as follows: <DllImport("fcvb.dll", CharSet:=CharSet.Auto)> _ Function dllBIN2_iv(ByVal price_u As Double, ByVal ex As Double, ByVal d_exp As Double, ByVal d_v As Double, ByVal price As Double, ByVal rate_ann As Double, ByVal acc_rate As Integer, ByVal cost_hldg As Double, ByVal acc_cost_hldg As Integer, ByVal option_type As Integer, ByVal iter As Integer, ByRef return_vlty_imp As Double) As Integer End Function When calling the Dll I got f... in the middle of the process saying: errMsg = "System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)   at Wcr_.NET_2005.Module1.dllBIN2_iv(Double price_u, Double ex, Double d_exp, Double d_v, Double price, Double rate_ann,... I am running an AMD64-Bit Opteron with 2GIG of Mem on Windows Server 2003 (64-Bit) Standard. Visual Studio 2005 Team Edition for SW Developers and .NET Framework 2.0   Any comments welcome I am open for both a COM wrapper .NET dll or n

My question/situation is with regard to AppDomain.CreateInstanceFrom or AppDomain.CreateInstanceFromAndUnwrap or AppDomain capabilities.My customer wants a service (or application) that can invoke Public methods from any .NET Managed DLL and be able to add, change, rename, delete those DLLs out of their storage location while the service is running.  DLLs will mostly likely not be marked Serializable and will most likely not inherit from MarshalByRefObject.  Presently, I am providing this functionality without the ability to change, rename, or delete DLLs while the service is running by loading the DLLs at service start (not very memory friendly).Could I create a manager class that supports this functionality, load that class into a separate AppDomain, invoke methods as needed, and unload the AppDomain as needed when DLLs change?  I would manage execution with a Queue object to ensure that requests for invocation don't get lost and don't try to access the manager when it is no longer in scope.  A FileSystemWatcher would handle unloading the AppDomain when changes occurred.Does this sound correct, normal, abnormal, or not possible?Software Developer, Augusta Systems

Can any one explain what the difference is between the following methods of WorkflowApplication: Abort Cancel Terminate

First of all I'm still very new to C# so be gentle :p I'm currently trying to make an application that can login to a certain website and search for some numbers and so on that I can put in an overview, just to save some time. The only thing I found that could do this is the WebBrowser control, and I've managed to make it work, but when I gave the program to a friend it failed. I think it has to do with the difference in browser versions (he uses Internet Explorer 7, I use the latest) and if that's the case I'm pretty clueless how to deal with the problem, since I don't even know what the differences in HTML codes are in each version, and it seems like a lot of work to adjust all the html code to check for accordingly. For example it was even so that & changed to &amp; in my application on my PC and that's only by using one browser so I dunno what happens with other browser versions. I assume that the WebBrowser control always uses Internet Explorer, even if for example Firefox is the standard browser, is this true? But to be sure I asked the friend to put his Internet Explorer as the default browser and still no go. So my question is: is there a relatively easy way to make sure that the program works on practically any PC, without me having to make exceptions for like version 1.6.7 or 1.6.8 (I have no idea what versions there are really)?

I have a strange situation about object deserialization. My assemblies all had strong name but signed with different key pair file - I did not realize it is better to have all assemblies signed with the same key pair file before. And now I need to use one single key pair file to resign all assemblies for some other purpose. But After I did that, my program cannot deserialize objects saved by previous version of the assemblies anymore. Use XML object as example, In the XML file, the object is saved with this kind of information, <MyObject version="1" referenceType="MyObject, Assembly1, Version=1.1.0.0, Culture=neutral, PublicKeyToken=f89a7ef07260c910"> <.... omited ... > </MyObject> The problem is that, the Assembly1 is resigned and the public key token of the running assembly does not match the token in the xml file. The same problem happens in my binary objects. Any gurus have some idea to deserialize objects after I resigned the assemblies? My program saved hundreds of objects, I hope there is some solution which will work with all of those objects.    

Does clustered index takes more disk space than NC for the same filed(s) for large tables? Also is CI takes longer (time) to build than NC if you have large tables? Any microsoft articles supporting these aruguments.

I have created a "Layout Editor" in Silverlight where the user can drag and drop text and image to create a custom layout. A sample of a Layout with one TextBlock can be seen here . The used font is Arial, size 50. This layout (not the image, but the layout itens properties like x,y,font, etc) is upload to the server by a WCF Service, which create the actual image and save it in the database. This is necessary because the text fields can have dynamic text, marked as '%text1', '%text2', where that dynamic values are in the database too. But, when i use the Bitmap and Graphics classes of the full .NET framework the DrawString method resulting drawning don't have the same aspect that your silverlight "counterpart". A result of the server generate image can ben seen here . Anyone can tell me if it is a resolution problem or something? I can't got a single clue about this.   PS: If it is possible, move to the corresponding forum section. I use Silverlight UI, WCF communication and GDI+ drawning, so used WCF forum.    

I have a WCF client calling a Java-based service. The service vendor is supporting WCF clients. The WCF client binding uses authenticationMode="MutualCertificate", messageVersion="Soap11WSAddressing10" and the message is signed and encrypted (SignBeforeEncrypt). WCF, in this case, is automatically signing all the ws-addressing ( <Action>, <MessageID> and <To> ) headers. The message gets to the service and comes back with what appears to be valid encrypted data in the response BUT the client is throwing a "The 'Action', 'http://www.w3.org/2005/08/addressing' required message part was not signed" exception (mscorlib). Questions: Is there a way to NOT sign the ws-addressing headers in the request message while still using both signing and encryption (X.509 certs)? If the client DOES sign the ws-addressing headers in the request, is there a way to configure WCF to accept UNsigned ws-addressing headers in the response? If the answer is NO on both questions, I guess I will have to ask the service vendor to sign the ws-addressing headers in the response. Thanks.

Hello! I'm having issues with importing Excel spreadsheets into Microsoft SQL Server 2005 on a Windows Server 2008 R2 64bit server.  After browsing the web, it appears that the problem is with the DLL's used by Microsoft Jet.  I've thus attempted to re-register these DLL's.  However, I am receiving the following results. c:\Windows\SysWOW64> regsvr32 c:\Windows\SysWOW64\msjetoledb40.dllSuccessful c:\Windows\SysWOW64> regsvr32 c:\Windows\SysWOW64\msjet40.dllSuccessful c:\Windows\SysWOW64> regsvr32 c:\Windows\SysWOW64\msjint40.dllThe module "msjint40.dll" was loaded but the entry-point DLLRegisterServer was not found c:\Windows\SysWOW64> regsvr32 c:\Windows\SysWOW64\msjter40.dllThe module "msjter40.dll" was loaded but the entry-point DLLRegisterServer was not found c:\Windows\SysWOW64> regsvr32 c:\Windows\SysWOW64\msjtes40.dllSuccessful c:\Windows\SysWOW64> regsvr32 c:\Windows\SysWOW64\mswstr10.dllThe module "mswstr10.dll" was loaded but the entry-point DLLRegisterServer was not found I've set the application pool for this site to use 32bit.  Please note that due to my role on the team, other options such as using ACE are not available to me, unless I can prove that I've exhausted all other options. Thoughts? Thanks,Mike

I am trying to configure FBA with SSL on my moss 2007 farm, but after web apps are created, and I switch the Authentication Provider for the "FBA" zone (Extranet), it changes the IP's back to default, so then I switch it back to the right IP, and run the SelfSSL.exe to assign the cert, then go back and check the IP, it is set back to default. I need to set the IP because, without it, it stops the site. This is the IP listed under "Multiple SSL identities for this Web Site". This behavior has to have surfaced before, Any idea?

I am running 2008 R2 standard and a client wants to move from 2005 to 2008 R2 Enterprise. Will I be able to download a database from their system and restore it to my system? Assuming there are no components/coding in use on the Enterprise version that are explicitly reserved for Enterprise?  Maybe I should ask, is there a fundamental incompatibility right out of the box between the databases from these two editions like when attempting to restore an 2008 database on a previous version instance?  I hope I asked that right :)