diff --git a/Ext2Mgr/enumDisk.cpp b/Ext2Mgr/enumDisk.cpp
index b1875b8..49173d4 100644
--- a/Ext2Mgr/enumDisk.cpp
+++ b/Ext2Mgr/enumDisk.cpp
@@ -1328,7 +1328,7 @@ Ext2Open(
     memset(UnicodeName, 0, sizeof(SHORT) * MAX_PATH);
     memset(AnsiName, 0, sizeof(UCHAR) * MAX_PATH);
 
-    NameLength = strlen(FileName);
+    NameLength = (USHORT)strlen(FileName);
     ASSERT(NameLength < MAX_PATH);
 
     if (FileName[0] == '\\')  {
@@ -4500,7 +4500,7 @@ Ext2AnsiToUnicode(
 
     memset(UniName, 0, sizeof(WCHAR) * UniLength);
 
-    NameLength = strlen(AnsiName);
+    NameLength = (USHORT)strlen(AnsiName);
     ASSERT(NameLength < UniLength);
 
     AnsiFilespec.MaximumLength = AnsiFilespec.Length = NameLength;
diff --git a/Ext2Srv/Ext2Pipe.cpp b/Ext2Srv/Ext2Pipe.cpp
index 82cb9f1..b4a7be3 100644
--- a/Ext2Srv/Ext2Pipe.cpp
+++ b/Ext2Srv/Ext2Pipe.cpp
@@ -231,7 +231,7 @@ BOOLEAN Ext2QueryDrive(PPIPE_REQ *pr, ULONG len)
         rc = QueryDosDeviceA(devPath, s, l);
         if (rc) {
             q->result = 1;
-            p->len = sizeof(PIPE_REQ) + sizeof(REQ_QUERY_DRV) + strlen(s) + 1;
+            p->len = (int)(sizeof(PIPE_REQ) + sizeof(REQ_QUERY_DRV) + strlen(s) + 1);
         } else {
             q->result = 0;
         }
diff --git a/Ext2Srv/Ext2Srv.cpp b/Ext2Srv/Ext2Srv.cpp
index 83d2d10..90356cb 100644
--- a/Ext2Srv/Ext2Srv.cpp
+++ b/Ext2Srv/Ext2Srv.cpp
@@ -507,7 +507,7 @@ void Ext2Log(DWORD ll, char *fn, int ln, char *format, ... )
         GetLocalTime(&st);
         sprintf_s(s, 256, "%2.2u:%2.2u:%2.2u (%x): ", st.wHour,
                   st.wMinute, st.wSecond, GetCurrentThreadId());
-        i = strlen(s);
+        i = (int)strlen(s);
     }
 
     /* write user message to buffer s */
diff --git a/Ext2Srv/Mount.cpp b/Ext2Srv/Mount.cpp
index faf8e4c..a720fb6 100644
--- a/Ext2Srv/Mount.cpp
+++ b/Ext2Srv/Mount.cpp
@@ -136,7 +136,7 @@ errorout:
 TCHAR *
 Ext2StrStr(TCHAR *s, TCHAR *t)
 {
-    int ls = _tcslen(s), lt = _tcslen(t), i;
+    int ls = (int)_tcslen(s), lt = (int)_tcslen(t), i;
     for (i = 0; i + lt <= ls; i++) {
         if (0 == _tcsnicmp(&s[i], t, lt))
             return &s[i];
@@ -159,7 +159,7 @@ TCHAR * Ext2BuildUsrCMD(TCHAR *task)
     if (p)
         *p = 0;
 
-    len = (int)_tcslen(cmd) + 10 + _tcslen(task);
+    len = (int)_tcslen(cmd) + 10 + (int)_tcslen(task);
     refresh = new TCHAR[len];
     if (!refresh)
         goto errorout;