Execute in Powershell.
If Keith Brown was struggling, I can't be ashamed for me struggling with it as well :).
What you need to do is make it clear to PowerShell that you want to execute the next string as a command. The way to do this is to use the call operator & (ampersand). Here's what I ended up with:
& $env:windir\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -r
Sys.Debug in the asp.net ajax library.
Asp.Net developers wrote the great Ajax Framework. There is so much stuff for professionals and beginner developers.
Also they didn't forget about debugging tools. (may be was done first)
class Sys.Debug contains 5 methods: ....