diff --git a/fmusim/FMIZip.c b/fmusim/FMIZip.c
index 394d2c82..502ada67 100644
--- a/fmusim/FMIZip.c
+++ b/fmusim/FMIZip.c
@@ -3,6 +3,7 @@
 #include <errno.h>
 #include <Windows.h>
 #include <Shlwapi.h>
+#pragma comment(lib, "shlwapi.lib")
 #include <process.h>
 #include <strsafe.h>
 #else
diff --git a/include/FMI.h b/include/FMI.h
index 8b45f7d2..70faaf43 100644
--- a/include/FMI.h
+++ b/include/FMI.h
@@ -152,8 +152,6 @@ FMI_STATIC void FMIAppendToLogMessageBuffer(FMIInstance* instance, const char* f
 
 FMI_STATIC void FMIAppendArrayToLogMessageBuffer(FMIInstance* instance, const void* values, size_t nValues, const size_t sizes[], FMIVariableType variableType);
 
-FMI_STATIC FMIStatus FMIURIToPath(const char *uri, char *path, const size_t pathLength);
-
 FMI_STATIC FMIStatus FMIPathToURI(const char *path, char *uri, const size_t uriLength);
 
 FMI_STATIC FMIStatus FMIPlatformBinaryPath(const char *unzipdir, const char *modelIdentifier, FMIVersion fmiVersion, char *platformBinaryPath, size_t size);
diff --git a/src/FMI.c b/src/FMI.c
index 9a6a35bf..66813b82 100644
--- a/src/FMI.c
+++ b/src/FMI.c
@@ -4,8 +4,6 @@
 #include <inttypes.h>
 
 #ifdef _WIN32
-#include <shlwapi.h>
-#pragma comment(lib, "shlwapi.lib")
 #else
 #include <stdarg.h>
 #include <dlfcn.h>
@@ -29,9 +27,6 @@ FMIInstance *FMICreateInstance(const char *instanceName, const char *libraryPath
     // convert path to unicode
     mbstowcs(dllDirectory, libraryPath, MAX_PATH);
 
-    // remove the file name
-    PathRemoveFileSpecW(dllDirectory);
-
     // add the binaries directory temporarily to the DLL path to allow discovery of dependencies
     DLL_DIRECTORY_COOKIE dllDirectoryCookie = AddDllDirectory(dllDirectory);
 
@@ -246,60 +241,23 @@ void FMIAppendArrayToLogMessageBuffer(FMIInstance* instance, const void* values,
     }
 }
 
-FMIStatus FMIURIToPath(const char *uri, char *path, const size_t pathLength) {
-
-#ifdef _WIN32
-    DWORD pcchPath = (DWORD)pathLength;
-
-    if (PathCreateFromUrlA(uri, path, &pcchPath, 0) != S_OK) {
-        return FMIError;
-    }
-#else
-    const char *scheme1 = "file:///";
-    const char *scheme2 = "file:/";
+FMIStatus FMIPathToURI(const char *path, char *uri, const size_t uriLength) {
 
-    strncpy(path, uri, pathLength);
+    const size_t pathLen = strlen(path);
 
-    if (strncmp(uri, scheme1, strlen(scheme1)) == 0) {
-        strncpy(path, &uri[strlen(scheme1)] - 1, pathLength);
-    } else if (strncmp(uri, scheme2, strlen(scheme2)) == 0) {
-        strncpy(path, &uri[strlen(scheme2) - 1], pathLength);
-    } else {
+    if (uriLength < strlen(path) + 8) {
         return FMIError;
     }
-#endif
 
 #ifdef _WIN32
-    const char* sep = "\\";
+    const char* scheme = "file:///";
 #else
-    const char* sep = "/";
+    const char* scheme = "file://";
 #endif
 
-    if (path[strlen(path) - 1] != sep[0]) {
-        strncat(path, sep, pathLength);
-    }
+    strcpy(uri, scheme);
 
-    return FMIOK;
-}
-
-FMIStatus FMIPathToURI(const char *path, char *uri, const size_t uriLength) {
-
-#ifdef _WIN32
-    DWORD pcchUri = (DWORD)uriLength;
-
-    if (UrlCreateFromPathA(path, uri, &pcchUri, 0) != S_OK) {
-        return FMIError;
-    }
-#else
-    const size_t pathLen = strlen(path);
-
-    if (uriLength < strlen(path) + 8) {
-        return FMIError;
-    }
-
-    strcpy(uri, "file://");
-
-    size_t p = 7;
+    size_t p = strlen(scheme);
 
     // percent encode special characters
     for (size_t i = 0; i < pathLen; i++) {
@@ -308,7 +266,13 @@ FMIStatus FMIPathToURI(const char *path, char *uri, const size_t uriLength) {
             return FMIError;
         }
 
-        const char c = path[i];
+        char c = path[i];
+
+#ifdef _WIN32
+        if (c == '\\') {
+            c = '/';
+        }
+#endif
 
         bool encode = true;
 
@@ -331,7 +295,6 @@ FMIStatus FMIPathToURI(const char *path, char *uri, const size_t uriLength) {
     }
 
     uri[p] = '\0';
-#endif
 
     return FMIOK;
 }
diff --git a/src/FMI2.c b/src/FMI2.c
index 116ce37c..a10b04aa 100644
--- a/src/FMI2.c
+++ b/src/FMI2.c
@@ -1,7 +1,5 @@
 #ifdef _WIN32
 #include <direct.h>
-#include "Shlwapi.h"
-#pragma comment(lib, "shlwapi.lib")
 #define strdup _strdup
 #define INTERNET_MAX_URL_LENGTH 2083 // from wininet.h
 #else
diff --git a/src/FMI3.c b/src/FMI3.c
index 04deae91..3cecf9ee 100644
--- a/src/FMI3.c
+++ b/src/FMI3.c
@@ -1,7 +1,5 @@
 #ifdef _WIN32
 #include <direct.h>
-#include "Shlwapi.h"
-#pragma comment(lib, "shlwapi.lib")
 #else
 #include <stdarg.h>
 #include <dlfcn.h>