COMException error. Use DLL - Type Mismatch

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COMException error. Use DLL - Type Mismatch

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Friends Good afternoon! Please help her with the following.

I have been given a DLL which I have no idea what language was programmed and I'm not sure it's an object to use in .NET environments. This dll is encrypted, but the idea is to use a function which is in it. This function is defined as follows:

Validate (String PW, ref String EncrPW, ref String Status);

When invoked in the following way:

        try
        {
            ODBMSSecEncr D = new ODBMSSecEncr();
            D.Validate("mflores",ref EncrPW, ref Status);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.StackTrace);
        }

Throw the following error:

ErrorCode: -2146828275 Message: Type mismatch StackTrace: in ODBMSSec._ODBMSSecEncr.Validate (String PW, String & EncrPW, String & Status) in ControlInsumos.Global.Application_Start (Object sender, EventArgs e) in C: \ Users \ JADM \ Documents \ Visual Studio 2010 \ Projects \ ControlInsumos \ ControlInsumos \ Global.asax.cs: line 32

Please help with this! Thanks in advance.

Greetings.

c#

asked by Manuel Flores 06.05.2016 в 20:07

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1 answer

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score 1 · Answer 1

It's probably a DLL that you have to register with Regsvr32

Try to do this:

If your PC is 32 bits

Copy the DLL to the folder: ** C: \ Windows \ SysWoW64 **

Then run this on the cmd (with admin privileges) % windir% \ SysWoW64 \ regsvr32.exe% windir% \ SysWoW64 \ name_of_your_dll.dll

If your PC is 64 bits

Copy the DLL to the folder: ** C: \ Windows \ System32 **

Then run this on the cmd (with admin privileges) % windir% \ System32 \ regsvr32.exe% windir% \ System32 \ your_dll.dll_name

Luck.