问题
I'm trying to register an x64 COM server dll for use in x64 office on x64 windows 7. I have followed the instructions here but I cannot register the dll. When I attempt to I get the following error:
The command I use is regsvr32 my_x64_com_server.dll
Why is this happening and is there a workaround?
Thanks in advance.
回答1:
How is the command being run? From a process or from a command line?
Make sure the command is being run from a 64-bit process (or a 64-bit cmd.exe console window). Otherwise, the %windir%\System32\regsvr32.exe command will be redirected to %windir%\SysWoW64\regsvr32.exe and a 32-bit regsrv32 will be run (which can't register 64-bit DLLs).
You could also try using %windir%\sysnative\regsvr32.exe which will redirect to the real %windir%\System32\ directory (but only from a 32-bit process, so if you use that take care to make sure no one tries to run the command from a 64-bit process).
See File System Redirector on MSDN for details.
来源：https://stackoverflow.com/questions/15778383/how-to-register-a-64-bit-com-dll-on-64-bit-windows-7