comm.dll:

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

comm.dll ?

2. CMD
3. : regsvr32 comm.dll Enter

RegSvr32.exe :

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

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

Snappy Driver Installer

:

:

combase.dll COMCTL32.dll COMDLG32.dll component.dll commpro.dll CommonLib.dll COMPDAT.dll commonui.dll COMSVCS.dll COMMON.dll comms.dll Communication.dll COMRES.dll commonres.dll complib.dll comver.dll comsupport.dll COMPATUI.dll compdyn.dll comm.dll comp32p.dll commlib.dll COMCAT.dll compoundplug.dll commonforms.dll COMREPL.dll COMMDLG.dll CommStat.dll COMMCTRL.dll CommChannel.dll