diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index 4810965de75..909754254e3 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -517,9 +517,10 @@ static void set_additional_environment(void)
     static const WCHAR all_users_valueW[] = {'A','l','l','U','s','e','r','s','P','r','o','f','i','l','e','\0'};
     static const WCHAR computernameW[] = {'C','O','M','P','U','T','E','R','N','A','M','E',0};
     static const WCHAR allusersW[] = {'A','L','L','U','S','E','R','S','P','R','O','F','I','L','E',0};
+    static const WCHAR programdataW[] = {'P','r','o','g','r','a','m','D','a','t','a',0};
     OBJECT_ATTRIBUTES attr;
     UNICODE_STRING nameW;
-    WCHAR *profile_dir = NULL, *all_users_dir = NULL;
+    WCHAR *profile_dir = NULL, *all_users_dir = NULL, *program_data_dir = NULL;
     WCHAR buf[MAX_COMPUTERNAME_LENGTH+1];
     HANDLE hkey;
     DWORD len;
@@ -542,6 +543,7 @@ static void set_additional_environment(void)
     {
         profile_dir = get_reg_value( hkey, profiles_valueW );
         all_users_dir = get_reg_value( hkey, all_users_valueW );
+        program_data_dir = get_reg_value( hkey, programdataW );
         NtClose( hkey );
     }
 
@@ -559,8 +561,14 @@ static void set_additional_environment(void)
         HeapFree( GetProcessHeap(), 0, value );
     }
 
+    if (program_data_dir)
+    {
+        SetEnvironmentVariableW( programdataW, program_data_dir );
+    }
+
     HeapFree( GetProcessHeap(), 0, all_users_dir );
     HeapFree( GetProcessHeap(), 0, profile_dir );
+    HeapFree( GetProcessHeap(), 0, program_data_dir );
 }
 
 /***********************************************************************