nop.exe

	#pragma comment(linker, "/SUBSYSTEM:windows /ENTRY:mainCRTStartup")
	void main() {
	;
	}

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nop.exe
C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat
Cl nop.c

add windows user to sql instance in single user mode

	"D:\Microsoft SQL Server\<INSTANCE_NAME>\MSSQL\Binn\sqlservr.exe" -s<INSTANCE_NAME> -m
	wichtig parameter für sqlcmd sind case sensitive
	sqlcmd -E -S<SERVERNAME>\<INSTANCE_NAME>
	CREATE LOGIN [<domain>\<user>] FROM WINDOWS;
	GO
	SP_ADDSRVROLEMEMBER '<domain>\<user>', 'sysadmin'
	GO

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