You can specify the name of the HLLAPI DLL supplied with a particular emulator by using the variable HllapiDLLName. Do not include the .DLL extension appended to the filename. The following is the default setting:

HllapiDLLName=PCSHll32 

Certain emulators may provide more than one HLLAPI DLL. After verifying which DLL you will be using, ensure that you have indicated the proper one in the ESLCMSRV.INI file.