Leber Hall

I believe you can use System.Runtime.InteropServic...

2010-08-25T09:10:05.246-07:00

I believe you can use System.Runtime.InteropServices.RegistrationServices, but I have only read the documentation. I haven't used it.

Accidentally deleted the post I wrote earlier. I h...

2010-08-25T00:18:04.965-07:00

Accidentally deleted the post I wrote earlier.
I have a similar problem for components written in .Net and compiled for COM interop.
Is there any alternative for the DllRegisterServer() function for these .Net created components?
I do not want to use regasm.exe

2010-08-25T00:10:50.853-07:00

This comment has been removed by the author.

Thanks for the tip about SetDllDirectory(). Yes, ...

2010-08-11T11:12:13.095-07:00

Thanks for the tip about SetDllDirectory().

Yes, you should be able to use P/Invoke wrappers around LoadLibrary(), GetProcAddress() and FreeLibrary() to call functions inside DLLs.

I added this to your class [DllImport(&quo...

2010-08-11T08:07:25.496-07:00

I added this to your class
[DllImport("kernel32.dll", EntryPoint = "SetDllDirectory", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern IntPtr SetDllDirectory(
[MarshalAs(UnmanagedType.LPTStr)] string lpPathName);

and called it with the directory my dll i located in.
Now I get the error Error 2147942405 returned from DllRegisterServer in wkhtmltoxcom.dll

Meaning I don't have sufficient rights to register in COM.

Ahh well, It was worth a try.

Thank you so much for your help. I guess i can modify the way you call DllRegisterServer into a way I can call a method in my dll, without the dll beeing registered with com, right?

I don't work with ASP.NET and don't know w...

2010-08-10T14:08:12.664-07:00

I don't work with ASP.NET and don't know what it uses for the executable path. You can look up the documentation for LoadLibrary() to see where it searches to find DLLs to load.

wkhtmltoxcom.dll has one dependency on wkhtmltox0....

2010-08-10T13:54:40.071-07:00

wkhtmltoxcom.dll has one dependency on wkhtmltox0.dll that I've also placed in the Bin folder.

I apologise for my ignorance. But how do I check i...

2010-08-10T13:51:30.963-07:00

I apologise for my ignorance. But how do I check if the dll file is in my "path".
I originally påt it in the /Bin folder of my ASP.Net website, that gave the same error. As far as I have gathered. As long as I call from a code behind .cs file, that code gets put into a dll that's placed in the Bin folder right. Is it in my path then?
I've tried with RegisterCOMDll(HttpContext.Current.Server.MapPath("wkhtmltopdf/") + "" + "wkhtmltoxcom.dll")
and
RegisterCOMDll("wkhtmltoxcom.dll")

Both give the same error.
I've put your code in App_Code and made RegisterCOMDll public and I call it directly.

You can't call any COM object without configur...

2010-08-10T12:18:16.322-07:00

You can't call any COM object without configuring the interface in the registry. regsvr32 is just a shell that calls DllRegisterServer() and DllUnregisterServer() in the DLL for you.

If you are creating the COM object in code you control and passing it to another module you could do all the low-level work yourself to construct the instance. Or you could rework your code to use a regular DLL interface and not a COM object.

Error 126 is "module not found" error. Is C:\ in your path? Are all the dependencies your DLL needs also in the path?

Do you know if there is any other way of calling a...

2010-08-10T12:05:43.488-07:00

Do you know if there is any other way of calling a com dll from dotNet than having to call regsvr32 first.
I've been looking at the DllImport attribute, can you use that with dll's that are not registred with regsvr32.

The reason I ask is because I'm trying to run a COM dll from an Asp.Net website, that's hosted on a shared server, where I don't have permission to do a regsvr32. I need an xcopy deploy method for the com dll. Is that at all possible?

I get the error: Unable to load 'c:\wkhtmltoxc...

2010-08-10T12:01:48.802-07:00

I get the error:
Unable to load 'c:\wkhtmltoxcom.dll' error is 126
Even though there is a file called wkhtmltoxcom.dll on C: in the root