diff --git a/reactos/dll/win32/advapi32/misc/logon.c b/reactos/dll/win32/advapi32/misc/logon.c
index a333ac14d87..3d9dc6d2b51 100644
--- a/reactos/dll/win32/advapi32/misc/logon.c
+++ b/reactos/dll/win32/advapi32/misc/logon.c
@@ -105,6 +105,10 @@ CreateProcessAsUserA(HANDLE hToken,
     PROCESS_ACCESS_TOKEN AccessToken;
     NTSTATUS Status;
 
+    TRACE("%p %s %s %p %p %d 0x%08x %p %s %p %p\n", hToken, debugstr_a(lpApplicationName),
+        debugstr_a(lpCommandLine), lpProcessAttributes, lpThreadAttributes, bInheritHandles,
+        dwCreationFlags, lpEnvironment, debugstr_a(lpCurrentDirectory), lpStartupInfo, lpProcessInformation);
+
     /* Create the process with a suspended main thread */
     if (!CreateProcessA(lpApplicationName,
                         lpCommandLine,
@@ -117,6 +121,7 @@ CreateProcessAsUserA(HANDLE hToken,
                         lpStartupInfo,
                         lpProcessInformation))
     {
+        ERR("CreateProcessA failed! GLE: %d\n", GetLastError());
         return FALSE;
     }
 
@@ -130,6 +135,7 @@ CreateProcessAsUserA(HANDLE hToken,
                                      sizeof(AccessToken));
     if (!NT_SUCCESS (Status))
     {
+        ERR("NtSetInformationProcess failed: 0x%08x\n", Status);
         SetLastError(RtlNtStatusToDosError(Status));
         return FALSE;
     }
@@ -137,6 +143,7 @@ CreateProcessAsUserA(HANDLE hToken,
     /* Resume the main thread */
     if (!(dwCreationFlags & CREATE_SUSPENDED))
     {
+        ERR("Resuming thread!\n");
         ResumeThread(lpProcessInformation->hThread);
     }
 
@@ -163,6 +170,10 @@ CreateProcessAsUserW(HANDLE hToken,
     PROCESS_ACCESS_TOKEN AccessToken;
     NTSTATUS Status;
 
+    TRACE("%p %s %s %p %p %d 0x%08x %p %s %p %p\n", hToken, debugstr_w(lpApplicationName),
+        debugstr_w(lpCommandLine), lpProcessAttributes, lpThreadAttributes, bInheritHandles,
+        dwCreationFlags, lpEnvironment, debugstr_w(lpCurrentDirectory), lpStartupInfo, lpProcessInformation);
+
     /* Create the process with a suspended main thread */
     if (!CreateProcessW(lpApplicationName,
                         lpCommandLine,
@@ -175,6 +186,7 @@ CreateProcessAsUserW(HANDLE hToken,
                         lpStartupInfo,
                         lpProcessInformation))
     {
+        ERR("CreateProcessW failed! GLE: %d\n", GetLastError());
         return FALSE;
     }
 
@@ -188,6 +200,7 @@ CreateProcessAsUserW(HANDLE hToken,
                                      sizeof(AccessToken));
     if (!NT_SUCCESS (Status))
     {
+        ERR("NtSetInformationProcess failed: 0x%08x\n", Status);
         SetLastError(RtlNtStatusToDosError(Status));
         return FALSE;
     }
@@ -195,6 +208,7 @@ CreateProcessAsUserW(HANDLE hToken,
     /* Resume the main thread */
     if (!(dwCreationFlags & CREATE_SUSPENDED))
     {
+        ERR("Resuming thread!\n");
         ResumeThread(lpProcessInformation->hThread);
     }
 
diff --git a/reactos/dll/win32/advapi32/sec/misc.c b/reactos/dll/win32/advapi32/sec/misc.c
index 33019693207..a8f92ef63c8 100644
--- a/reactos/dll/win32/advapi32/sec/misc.c
+++ b/reactos/dll/win32/advapi32/sec/misc.c
@@ -526,6 +526,7 @@ ImpersonateLoggedOnUser(HANDLE hToken)
                                   &NewToken);
         if (!NT_SUCCESS(Status))
         {
+            ERR("NtDuplicateToken failed: Status %08x\n", Status);
             SetLastError(RtlNtStatusToDosError(Status));
             return FALSE;
         }
@@ -552,6 +553,7 @@ ImpersonateLoggedOnUser(HANDLE hToken)
 
     if (!NT_SUCCESS(Status))
     {
+        ERR("NtSetInformationThread failed: Status %08x\n", Status);
         SetLastError(RtlNtStatusToDosError(Status));
         return FALSE;
     }
diff --git a/reactos/dll/win32/advapi32/token/token.c b/reactos/dll/win32/advapi32/token/token.c
index 5da745d2a59..5cb88a90572 100644
--- a/reactos/dll/win32/advapi32/token/token.c
+++ b/reactos/dll/win32/advapi32/token/token.c
@@ -218,15 +218,20 @@ OpenProcessToken(HANDLE ProcessHandle,
 {
     NTSTATUS Status;
 
+    TRACE("%p, %x, %p.\n", ProcessHandle, DesiredAccess, TokenHandle);
+
     Status = NtOpenProcessToken(ProcessHandle,
                                 DesiredAccess,
                                 TokenHandle);
     if (!NT_SUCCESS(Status))
     {
+        ERR("NtOpenProcessToken failed! Status %08x.\n", Status);
         SetLastError(RtlNtStatusToDosError(Status));
         return FALSE;
     }
 
+    TRACE("Returning token %p.\n", *TokenHandle);
+
     return TRUE;
 }
 
@@ -297,6 +302,9 @@ DuplicateTokenEx(IN HANDLE ExistingTokenHandle,
     NTSTATUS Status;
     SECURITY_QUALITY_OF_SERVICE Sqos;
 
+    TRACE("%p 0x%08x 0x%08x 0x%08x %p\n", ExistingTokenHandle, dwDesiredAccess,
+        ImpersonationLevel, TokenType, DuplicateTokenHandle);
+
     Sqos.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
     Sqos.ImpersonationLevel = ImpersonationLevel;
     Sqos.ContextTrackingMode = 0;
@@ -329,10 +337,13 @@ DuplicateTokenEx(IN HANDLE ExistingTokenHandle,
                               DuplicateTokenHandle);
     if (!NT_SUCCESS(Status))
     {
+        ERR("NtDuplicateToken failed: Status %08x\n", Status);
         SetLastError(RtlNtStatusToDosError(Status));
         return FALSE;
     }
 
+    TRACE("Returning token %p.\n", *DuplicateTokenHandle);
+
     return TRUE;
 }