btncopy.dll:

btncopy.dll, C:\WINDOWS\system32, C:\Windows\SysWOW64\ Microsoft Dynamic-link library

btncopy.dll ?

2. CMD
3. : regsvr32 btncopy.dll Enter

RegSvr32.exe :

Regsvr32 [/u] [/n] [/i[:cmdline]] btncopy.dll

/n -  /i
/s – 
/u - 
/i -  [cmdline];  /u, 

Snappy Driver Installer

:

:

bcrypt.dll bootres.dll borlndmm.dll bass.dll bugsplat.dll battle.net.dll bit4p11.dll barcode.dll battery.dll BugTrap.dll burutter.dll Backend.dll Base.dll bcryptprimitives.dll BackgroundContainer.dll Bar.dll bank.dll b9.dll b3d.dll baan.dll BAPI.dll bantam.dll bamainlib.dll BandTest.dll BackUp.dll backspin.dll baplayer.dll bartab.dll badecx.dll b1dq0fgc.dll