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c# and shadow copy – notes on library AlphaVSS


AlphaVSS is a .NET class library providing a managed API for the Volume Shadow Copy Service also known as VSS

Error loading library AlphaVSS.x64.dll

if you have error loading the library probabilly you need to install on the machine the Visual C++ 2017 Redist package.

You can find it at this link

Control shadow copy

To control shadow copy, created using alphavss library, you have to open a command prompt whith administrative priviliges and type


to list your shadow copy you have to type :

vssadmin list shadows


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Windows server – Active Directory – useful links

Move active directory roles from a domanin controller ti another


Backup Domain Controller

Aggiungere un Backup Domain Controller ad un dominio Active Directory esistente

Installing licenses for Remote Desktop

Licensing Mode for Remote Desktop Session Host is not Configured

Modalità gestione licenze di Desktop remoto non configurata

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Fix Windows Update errors

Open Start, type: CMD
Right click CMD
Click Run as administrator

Type each of the following then hit Enter

taskkill /f /fi "SERVICES eq wuauserv" (Do this multiple times)
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
rmdir C:\Windows\SoftwareDistribution\DataStore
rmdir C:\Windows\SoftwareDistribution\Download

When complete, hit Enter, then restart, then try updating again.

If that does not work..

1. Open Start, type: CMD
Right click CMD
Click Run as administrator

Type each of the following then hit Enter

Run these codes:

Net Stop bits
Net Stop wuauserv
Net Stop appidsvc
Net Stop cryptsvc
Ren %systemroot%\SoftwareDistribution SoftwareDistribution.bak
Ren %systemroot%\system32\catroot2 catroot2.bak
Net Start bits
Net Start wuauserv
Net Start appidsvc
Net Start cryptsvc

After running these commands, check if your issue is fixed.

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File Explorer hangs

File Explorer, the program you use to view folders and files crashes. The whole computer appears to be frozen.


Hit Windows+R to open the Run box. Type in cmd to search for Command Prompt. Right-click Command Prompt and choose Run as administrator on the menu.

Type this sequence of commands

  1. Type netsh in Command Prompt > press Enter.
  2.  Type winsock in Command Prompt > hit Enter.
  3.  Type reset in Command Prompt > hit Enter.
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Control Panel tools by command

To run a Control Panel tool in Windows, type the appropriate command in the Open box or at a command prompt.

Add New Hardware control  add new hardware sysdm.cpl
Add/Remove Programs control appwiz.cpl
Date/Time Properties control timedate.cpl
Display Properties control desk.cpl
Internet Properties control inetcpl.cpl
Keyboard Properties control main.cpl
Microsoft Exchange control mlcfg32.cpl
Mouse Properties control main.cpl
Multimedia Properties control mmsys.cpl
Network Properties control netcpl.cpl or ncpa.cpl,
PC Card control pc card (PCMCIA) main.cpl
Regional Settings control intl.cpl
Sound Properties control  sounds mmsys.cpl
System Properties control sysdm.cpl
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“run as administrator” does not work

You are using a Windows machine with a non-administrator user and you need to install a program. you select “Run As Administrator” and the form for entering credentials is not displayed. This happens because you have disabled the UAC (User Account Control).

I advise you : never to deactivate it because it is a component that takes care of the security of your system; practically, it’s the component that takes care of asking you for confirmation when you’re performing some special operation on your computer.

How to reactivate it?

  1. Disconnect this account and reconnect with an administrator user.
  2. Select “Change user account and control settings”
  3. In the “User Account Control Settings” window, drag the slider from bottom (disabled) to second level
  4. Reboot your computer for the change to take effect.