Steps to mind before Installing Apps any Server.

Steps to be performed before installing any new software on the server.

Obtain Screenshots/details of the following and update it in the instance specific installation document. This will help in determining new processes, new registry entries etc.
1)Task Manager Process – select all user processess (Start -> Run -> Taskmgr -> Maximise Window -> Click Process Tab)
2)Export Registry Settings (Start -> Run -> regedit -> File -> Export)
3)Services (Start -> Run -> services.msc -> click Status column Heading to sort based on services started -> Click Export List – this option will also export the descriptions, hence click on View -> Add/Remove Columns -> Click Description -> Remove -> Click ok. After Exporting, Click View -> Add/Remove Columns -> Click Description -> Add -> Click ok)
4)Environment Variables (Start -> Run -> cmd -> type set)
5)Record PATH Environment Variable Value (Start -> Run -> explorer -> Right Click on My computer -> Properties -> Advanced -> Environment Variables -> Under System Variables -> Double Click Path -> Copy the value)

To get ScreenShots

Click Print Screen Button [Prnt Scrn] -> Start -> Run -> MsPaint -> Control + V

Windows Shortcuts

To Launch Run -> WindowsKey + R
To Launch Explorer -> WindowsKey + E