diff --git a/dlls/atl/tests/atl_ax.c b/dlls/atl/tests/atl_ax.c
index ea9ce321a1d..f2dad749e95 100644
--- a/dlls/atl/tests/atl_ax.c
+++ b/dlls/atl/tests/atl_ax.c
@@ -51,12 +51,12 @@ static ATOM register_class(void)
     WNDCLASSA wndclassA;
 
     wndclassA.style = 0;
-    wndclassA.lpfnWndProc = DefWindowProc;
+    wndclassA.lpfnWndProc = DefWindowProcA;
     wndclassA.cbClsExtra = 0;
     wndclassA.cbWndExtra = 0;
     wndclassA.hInstance = GetModuleHandleA(NULL);
     wndclassA.hIcon = NULL;
-    wndclassA.hCursor = LoadCursorA(NULL, IDC_ARROW);
+    wndclassA.hCursor = LoadCursorA(NULL, (LPSTR)IDC_ARROW);
     wndclassA.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
     wndclassA.lpszMenuName = NULL;
     wndclassA.lpszClassName = "WineAtlTestClass";
diff --git a/dlls/dplayx/tests/dplayx.c b/dlls/dplayx/tests/dplayx.c
index 44c9b50c94c..fb76c37db71 100644
--- a/dlls/dplayx/tests/dplayx.c
+++ b/dlls/dplayx/tests/dplayx.c
@@ -667,7 +667,7 @@ static void init_TCPIP_provider( IDirectPlay4 *pDP, LPCSTR strIPAddressString, W
 
     /* IP address string */
     addressElements[1].guidDataType = DPAID_INet;
-    addressElements[1].dwDataSize   = lstrlen(strIPAddressString) + 1;
+    addressElements[1].dwDataSize   = lstrlenA(strIPAddressString) + 1;
     addressElements[1].lpData       = (LPVOID) strIPAddressString;
 
     /* Optional Port number */
diff --git a/dlls/fusion/tests/asmcache.c b/dlls/fusion/tests/asmcache.c
index da39505abf7..6fe72bfef3f 100644
--- a/dlls/fusion/tests/asmcache.c
+++ b/dlls/fusion/tests/asmcache.c
@@ -944,7 +944,7 @@ static void test_InstallAssembly(void)
     GetWindowsDirectoryA(dllpath, MAX_PATH);
     strcat(dllpath, "\\assembly\\GAC_MSIL\\wine\\\\1.0.0.0__2d03617b1c31e2f5\\wine.dll");
 
-    attr = GetFileAttributes(dllpath);
+    attr = GetFileAttributesA(dllpath);
     ok(attr != INVALID_FILE_ATTRIBUTES, "Expected assembly to exist\n");
 
     /* uninstall the assembly from the GAC */
@@ -954,7 +954,7 @@ static void test_InstallAssembly(void)
     ok(disp == IASSEMBLYCACHE_UNINSTALL_DISPOSITION_UNINSTALLED,
        "Expected IASSEMBLYCACHE_UNINSTALL_DISPOSITION_UNINSTALLED, got %d\n", disp);
 
-    attr = GetFileAttributes(dllpath);
+    attr = GetFileAttributesA(dllpath);
     ok(attr == INVALID_FILE_ATTRIBUTES, "Expected assembly not to exist\n");
 
     disp = 0xf00dbad;
diff --git a/dlls/lz32/tests/lzexpand_main.c b/dlls/lz32/tests/lzexpand_main.c
index 41792d6321f..4980cf7adca 100644
--- a/dlls/lz32/tests/lzexpand_main.c
+++ b/dlls/lz32/tests/lzexpand_main.c
@@ -83,8 +83,8 @@ static void full_file_path_name_in_a_CWD(const char *src, char *dst, BOOL expect
   if(expect_short) 
   {
     memcpy(shortname, dst, MAX_PATH);
-    retval = GetShortPathName(shortname, dst, MAX_PATH-1);
-    ok(retval > 0, "GetShortPathName returned %d for '%s', GLE=%d\n",
+    retval = GetShortPathNameA(shortname, dst, MAX_PATH-1);
+    ok(retval > 0, "GetShortPathNameA returned %d for '%s', GLE=%d\n",
        retval, dst, GetLastError());
   }
 }
diff --git a/dlls/pdh/tests/pdh.c b/dlls/pdh/tests/pdh.c
index 96900202768..f492d5a5992 100644
--- a/dlls/pdh/tests/pdh.c
+++ b/dlls/pdh/tests/pdh.c
@@ -63,7 +63,7 @@ static BOOL is_lang_english(void)
 
 static void init_function_ptrs( void )
 {
-    pdh = GetModuleHandle( "pdh" );
+    pdh = GetModuleHandleA( "pdh" );
     GETFUNCPTR( PdhAddEnglishCounterA )
     GETFUNCPTR( PdhAddEnglishCounterW )
     GETFUNCPTR( PdhCollectQueryDataWithTime )
diff --git a/dlls/snmpapi/tests/util.c b/dlls/snmpapi/tests/util.c
index 908d5e29f73..0c517c1738f 100644
--- a/dlls/snmpapi/tests/util.c
+++ b/dlls/snmpapi/tests/util.c
@@ -32,7 +32,7 @@ static INT  (WINAPI *pSnmpUtilOctetsNCmp)(AsnOctetString*, AsnOctetString*, UINT
 
 static void InitFunctionPtrs(void)
 {
-    HMODULE hSnmpapi = GetModuleHandle("snmpapi.dll");
+    HMODULE hSnmpapi = GetModuleHandleA("snmpapi.dll");
 
 #define SNMPAPI_GET_PROC(func) \
     p ## func = (void*)GetProcAddress(hSnmpapi, #func); \
diff --git a/programs/wscript/tests/run.c b/programs/wscript/tests/run.c
index 567bf4511d0..75d8f6e3204 100644
--- a/programs/wscript/tests/run.c
+++ b/programs/wscript/tests/run.c
@@ -366,7 +366,7 @@ static void run_test(const char *file_name)
     CHECK_CALLED(reportSuccess);
 }
 
-static BOOL WINAPI test_enum_proc(HMODULE module, LPCTSTR type, LPSTR name, LONG_PTR param)
+static BOOL WINAPI test_enum_proc(HMODULE module, LPCSTR type, LPSTR name, LONG_PTR param)
 {
     const char *script_data, *ext;
     DWORD script_size, size;
@@ -418,7 +418,7 @@ static BOOL init_key(const char *key_name, const char *def_value, BOOL init)
     DWORD res;
 
     if(!init) {
-        RegDeleteKey(HKEY_CLASSES_ROOT, key_name);
+        RegDeleteKeyA(HKEY_CLASSES_ROOT, key_name);
         return TRUE;
     }