diff -uNr BonCasClient/BonCasClient/BonCasClient.cpp BonCasClient.patched/BonCasClient/BonCasClient.cpp
--- BonCasClient/BonCasClient/BonCasClient.cpp	2010-11-11 16:31:10.000000000 +0900
+++ BonCasClient.patched/BonCasClient/BonCasClient.cpp	2015-08-13 10:53:44.354017200 +0900
@@ -122,7 +122,7 @@
 			*((LPCSTR *)mszReaders) = szReaderName;		
 			return SCARD_S_SUCCESS;
 		}else{
-			*pcchReaders = sizeof(szReaderName);
+			*pcchReaders = sizeof(szReaderName) / sizeof(szReaderName[0]);
 		}
 	}
 
@@ -140,7 +140,7 @@
 			*((LPCWSTR *)mszReaders) = szReaderName;		
 			return SCARD_S_SUCCESS;
 		}else{
-			*pcchReaders = sizeof(szReaderName);
+			*pcchReaders = sizeof(szReaderName) / sizeof(szReaderName[0]);
 		}
 	}