You are unable to load the servehandle.dll file because its dependency, tmdbg20.dll, is also not loadable.
A strict policy on Windows, an install.exe file cannot load its dependency if they are both on the same folder.
As a workaround, copy the following .dll files to \Trend Micro\OfficeScan\PCCSRV\PCCNT\Disk1 and open autopcc on the server:
- VSAPI32.dll under C:\program files\Trend Micro\OfficeScan\PCCSRV
- tmdbg20.dll under C:\program files\Trend Micro\OfficeScan\PCCSRV\Admin