Error While Registering dll from code

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hi all
i wanted to register dll from code..
so form the given link i copied the code and tried it

http://www.zorched.net/2009/01/01/register-and-unregister-com-dll-from-net-code/[^]

but it is giving error as

The specified procedure could not be found

at this line

C#

IntPtr dllEntryPoint = GetProcAddress(hLib, methodName);
            if (IntPtr.Zero == dllEntryPoint)
            {
               error=> throw new Win32Exception(Marshal.GetLastWin32Error());
            }
            PointerToMethodInvoker drs =
                   (PointerToMethodInvoker) Marshal.GetDelegateForFunctionPointer(dllEntryPoint,
                               typeof(PointerToMethodInvoker));
            drs();

any Help??
thank you

god bless u all

Posted 20-Jul-12 2:44am

MAU787

Updated 20-Jul-12 2:49am

v2

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Comments

Richard MacCutchan 20-Jul-12 9:06am

Does the string content in methodName actually match the name of a procedure in the library you have loaded?

MAU787 21-Jul-12 0:54am

yes i have same method name in my class library

Richard MacCutchan 21-Jul-12 4:25am

In that case it cannot be an exported procedure as the error message is quite clear.

BobJanova 20-Jul-12 12:22pm

Check the calling convention of the DLL: is it compatible with LoadLibrary? Do you need to specify parameter-type suffices to the name?

MAU787 21-Jul-12 1:00am

how to do it??

1 solution

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Christian Graus · Accepted Answer · 2012-07-20T12:09:00

Solution 1

To register a COM dll, you call regsvr32. There's no complex code or library required. ShellExecute is all you need.

Posted 20-Jul-12 12:09pm

Christian Graus

Comments

MAU787 21-Jul-12 0:17am

hi..thanx for reply
do you have any example code for it??

Christian Graus 21-Jul-12 1:50am

Ooops - Process.Start is actually what you need. The rest is self documenting.

MAU787 21-Jul-12 2:09am

i tried this code

Process ps;
ps = new Process();
String p= ps.StartInfo.FileName ="C:\\WINDOWS\\system32\\regsvr32.exe";
Console.WriteLine(p);
ps.StartInfo.Arguments = "C:\\AxComp.dll";
ps.StartInfo.UseShellExecute = false ;
ps.StartInfo.RedirectStandardOutput = true ;
ps.StartInfo.CreateNoWindow = true ;
ps.Start();

got error:
The module "C:\AxComp.dll" was loaded but the entry-point DllRegisterServer was not found.

Make sure that "C:\AxComp.dll" is a valid DLL or OCX file and then try again.

Christian Graus 21-Jul-12 2:14am

Just make the filename regsvr32.exe, the system will find where it is. This looks like it worked just fine, now your problem is that your dll is not a valid COM dll.

MAU787 21-Jul-12 2:27am

okk...thank you..:)