Thursday, February 12, 2009

How to Register DLLs in C#

The Regsvr32 tool is used to register or un-register DLL or OCX files.

Regsvr32 [/u] [/s] [/n] [/i[:cmdline]] dll_name
/u – un-register server
/s – to run silently without display any message boxes
dll_name – indicates the path and file name of the DLL to register. More than one DLL is allowed in this command.

regsvr32 C:\example.ocx
regsvr32 /u C:\example.ocx

Sometimes we need to register DLLs programmatically, the codes below will show you how to invoke the regsvr32.exe and register a dll file in C#.

using System.Diagnostics;

public static void registerDLL(string dllPath)
  try {
    //'/s' : indicates regsvr32.exe to run silently.
    string fileinfo = "/s" + " " + "\"" + dllPath + "\"";

    Process reg = new Process();
    reg.StartInfo.FileName = "regsvr32.exe";
    reg.StartInfo.Arguments = fileinfo;
    reg.StartInfo.UseShellExecute = false;
    reg.StartInfo.CreateNoWindow = true;
    reg.StartInfo.RedirectStandardOutput = true;
  catch(Exception ex) {

Hope this will help.

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