Finally i have found this tips:-
Skype installer relies upon VBScript & JavaScript, which for some reason isn't registered automatically within Windows.
I have already followed and tested so follow this Steps to register vbscript.dll and jscript.dll
Windows 32 bit
1. Run cmd.exe with administrator privileges (Start > type ‘cmd’ then
right click on cmd.exe and select Run as Administrator, then click
Continue when prompted by the elevation consent dialogue box). This
will open a command prompt in c:\windows\system32
2.Type “regsvr32 vbscript.dll” (Without The Quotes) press Enter
You should now get a message that says: “DllRegisterServer in vbscript.dll succeeded.”
3.Type “regsvr32 jscript.dll” (Without The Quotes) press Enter
You should now get a message that says: “DllRegisterServer in jscript.dll succeeded.”
Restart Your Computer.
Windows 64 bit
1.Run cmd.exe with administrator privileges (Start > type ‘cmd’ then
right click on cmd.exe and select Run as Administrator, then click
Continue when prompted by the elevation consent dialogue box). This
will open a command prompt in c:\windows\system32
2.Type cd..
3.Type "cd SysWOW64" (Without The Quotes) press Enter
4. Type “regsvr32 vbscript.dll” (Without The Quotes) press Enter
You should now get a message that says: “DllRegisterServer in vbscript.dll succeeded.”
5. Type “regsvr32 jscript.dll” (Without The Quotes) press Enter
You should now get a message that says: “DllRegisterServer in jscript.dll succeeded.”
Restart Your Computer.
Note: If you have Internet Explorer 9 (IE9) installed, then also do this:
Type: “regsvr32 jscript9.dll” (Without The Quotes) press Enter
You should now get a message that says: “DllRegisterServer in jscript9.dll succeeded.”
Restart Your Computer.
Try running the installer.
You may need to reset your Internet Explorer Settings.
Here is a Mr. FixIT:
Run This.
You may also need to reinstall or repair your Internet Explorer.
Here is another Mr. FixIT
Click the Run Now button.
Restart Your Computer.
Try running the installer.
As a tip: Always keep your Skype, Windows, Internet Explorer, DirectX, Flash and Java software up to date to run Skype Smoothly.
...Naresh Pokharel