Interesting/weird feature of DateTime.ToString()

I was playing around with localization when I encountered the following behaviuor: I set time & number format to "French (Canada)", and wrote:

DateTime.Now.ToString("dd/MM/yyyy")

I got:
12-12-2007

Instead of "/" I got "-".

I was looking around and couldn't find any documentation saying '/' is a special character in DateTime format string. Finally I used the following string which worked just fine:

DateTime.Now.ToString(@"dd\/MM\/yyyy")

How to list all installed sevice packs in C#

// Create WMI connection
ConnectionOptions options = new ConnectionOptions();
string machine = "127.0.0.1";
ManagementPath path = new ManagementPath(String.Format(

@"\\{0}\root\cimv2", machine));

ManagementScope scope = new ManagementScope(path, options);
scope.Connect();

// Query
ObjectQuery query = new ObjectQuery(

"Select * from Win32_QuickFixEngineering");

ManagementObjectSearcher managerTemp =

new ManagementObjectSearcher(scope, query);

//Get the results
ManagementObjectCollection returnCollection = managerTemp.Get();

foreach (ManagementObject managementObject in returnCollection)
{

System.Console.WriteLine("*** New Item: ");
foreach (PropertyData propertyData in managementObject.Properties)
{

System.Console.WriteLine(" {0} : {1}",

propertyData.Name,
propertyData.Value);

}

}