You can call a WEB Service (this is what .NET is all about) from a script

 

set SOAPClient = createobject("MSSOAP.SOAPClient")
SOAPClient.mssoapinit "http://www.webservicex.net/stockquote.asmx?WSDL"
WScript.Echo "MSFT : " & SOAPClient.GetQuote("MSFT")

 

See GotDotNet for more on .NET

set oUA = CreateObject("UserAccounts.CommonDialog")
' exposed in  nusrmgr.cpl
x = oUA.ShowOpen
wscript.echo x ' shows False if user cancels selection
wscript.echo oUA.FileName

 

or

 

set oFO = CreateObject("SAFRCFileDlg.FileOpen")
' exposed in safrcdlg.dll
x = oFO.OpenFileOpenDlg
wscript.echo x, oFO.FileName

 

Note that the return value from the call using SAFRCFileDlg.FileOpen has inverted logic; you get back a 1 if the user selected a file rather than -1.

This will only work when the script is run using cscript!

Set pw = CreateObject("ScriptPW.Password")
WScript.StdOut.Write "What's the magic word? "
strPassword = pw.GetPassword()
MsgBox strPassword

Set dateTime = CreateObject("WbemScripting.SWbemDateTime")
set OSobjs = GetObject("winmgmts:").InstancesOf("Win32_OperatingSystem")

for each obj in OSobjs
    dateTime.Value = obj.LastBootUpTime
    wscript.echo "Last boot time:",dateTime.GetVarDate
next

 

More details on MSDN

progid = Microsoft.CmdLib

Method Name	Description
CheckScript	used to find whether CScript is used or not
vbPrintf	Simulates the Printf function
getHostName	used to get the current Host name
getUserName	used to get the current User Name
getDomainName	used to get the current Domain name
getPassword	used to get the password from the user
trapError	Reports error with a string saying what the error occurred in
getArguments	used to get the arguments into appropriate variables
wmiConnect	used to connect to wmi provider with the given credentials
packString	Attaches spaces to a string to increase the length to intWidth
getMaxStringLen	used to get length of the maximum length string in an array of strings
showResults	used to show results in the desired format
validateDateTime	To validate the date-time format specified
changeToWMIDateTime	To format the given date-time
matchPattern	checks whether a given value matches a particular pattern

 

Read more about it on MSDN