How to open mutiple Netbeans simultaneously

Unless we give the check box checked in the pop up when eclipse IDE is opened, the same icon can be used for opening various workspaces at a time. But this is not possible in the case of Netbeans IDE.
To over come this, follow below mentioned steps:
1) Create a separate folder (say F:\Workspaces\nbuserdir2)
2) Right click the net beans icon and take properties
3) Including the double quotes, your existing value will be like this "F:\InstalledNetBeans6.8\NetBeans 6.8\bin\netbeans.exe"
4) Add this line also to it. --userdir F:\Workspaces\nbuserdir2
5) Now the target will look like this:
"F:\InstalledNetBeans6.8\NetBeans 6.8\bin\netbeans.exe" --userdir F:\Workspaces\nbuserdir2
6) Click apply
7) Click OK
Check this link for details