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主要是介紹IIS6和IIS7。IIS6主要是運用System.DirectoryServices.dll，IIS7用到Microsoft.Web.Administration.dll，該DLL在IIS7目錄中存在，拷貝即可。

代碼如下：

/// <summary>

/// 取得IIS版本

/// </summary>

/// <returns></returns>

private int GetIISVersion()

{

DirectoryEntry getEntity = new DirectoryEntry("IIS://localhost/W3SVC/INFO");

string strVersion = getEntity.Properties["MajorIISVersionNumber"].Value.ToString();

return Convert.ToInt32(strVersion);

}

主體實現方法：

private void Main() {

//判斷IIS版本

int iisVersion = this.GetIISVersion();

//IIS7

if (iisVersion > 6)

{

try

{

ServerManager server = new ServerManager();

Configuration confg = server.GetWebConfiguration(webSiteName); //webSiteName站點名稱

ConfigurationSection section;

section = confg.GetSection("system.webServer/staticContent"); //取得MimeMap所有節點(路徑為:%windir%\Windows\System32\inetsrv\config\applicationHost.config)

ConfigurationElement filesElement = section.GetCollection();

ConfigurationElementCollection filesCollection = filesElement.GetCollection();

ConfigurationElement newElement = filesCollection.createElement(); //新建MimeMap節點

newElement.Attributes["fileExtension"].Value = this.txtName.Text;

newElement.Attributes["mimeType"].Value = this.txtMimeType.Text;

if (filesCollection.Contains(newElement))

{

MessageBox.Show("您添加的類型已存在，請重新添加!");

return;

}

filesCollection.Add(newElement);

server.CommitChanges(); //更改目錄

MessageBox.Show("添加成功!");

this.Close();

}

catch (Exception ex)

{

MessageBox.Show("eror:" + ex.Message.ToString());

}

}

else //IIS6

{

try

{

int id = this.GetselectIdByWebSiteName(webSiteName); //取得站點的標識符ID

DirectoryEntry path = new DirectoryEntry(string.Format("IIS://localhost/w3svc/{0}/root", id));

PropertyValueCollection propValues = path.Properties["MimeMap"];

string newExtension = this.txtName.Text; //擴展名

string newMimeType = this.txtMimeType.Text; //MIME類型

object exists = null;

foreach (object value in propValues)

{

IISOle.IISMimeType mimetypeObj = (IISOle.IISMimeType)value;

if (newExtension == mimetypeObj.Extension){exists = value;}

}

if (null != exists)

{

//propValues.Remove(exists);

MessageBox.Show("您添加的類型已存在，請重新添加!");

return;

}

IISOle.MimeMapClass _NewMime = new IISOle.MimeMapClass(); //新建MIME類型

_NewMime.Extension = newExtension;

_NewMime.MimeType = newMimeType;

propValues.Add(_NewMime); //添加MIME類型

path.CommitChanges(); //更改目錄

MessageBox.Show("添加成功!");

this.Close();

}

catch (Exception ex)

{

MessageBox.Show(ex.Message.ToString());

}

}

}