windows-vista

I need my application to behave differently depending on whether Vista UAC is enabled or not. How can my application detect the state of UAC on the user's computer? Philip Rieck This registry key should tell you: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System Value EnableLUA (DWORD) 1 enabled / 0 or missing disabled But that assumes you have the rights to read it. Programmatically you can try to read the user's token and guess if it's an admin running with UAC enabled (see here ). Not foolproof, but it may work. The issue here is more of a "why do you need to know" - it has

I have a problem where an application (written in Delphi) is behaving properly at default 96 DPI settings on all systems, but is behaving inconsistently at the "150% text size" (internally 144 dpi) setting, on different systems. It seems that on some systems, that certain text/font parts of my application are being stretched and on other systems, they aren't. I would have thought that my application, on a certain version of Windows (Win7), at a certain DPI, should behave the same way. Either my application will make it known to Windows that it doesn't need the DPI Virtualization feature, or it

I want my program to be able to edit a values within a registry key that resides in 'HKEY_LOCAL_MACHINE' My.Computer.Registry.SetValue("HKEY_LOCAL_MACHINE\SOFTWARE\XYZ", "MyValue", "MyData") The above works fine in Windows XP, but throws an UnauthorizedAccessException in Vista. JaredPar You are running into Vista's UAC feature. It will not let you write to arbitrary places in the HKLM hive because you are not running with Administrative priviledges. There are two ways to work around this issue Run the program with Administrative priviledges (different than running a program as an account which

I built the simple MS example for TaskDialogIndirect (see https://msdn.microsoft.com/en-us/library/windows/desktop/bb760544(v=vs.85).aspx ) When I run it I get "The ordinal 345 could not be located in the dynamic link library COMCTL32.dll" The above page says it needs ComCtl32.DLL version 6 but C:\Windows\System32\ComCtl32.DLL is 5.82.7601.18201 and I can't find a version 6 anywhere on the disk. I am running Windows 7 with VS2012. TaskDialog was added in Vista so why don't I have the correct version of ComCtl32.DLL??? Here's a common and useful block of code that should help to load the

Is it possible for a process to lower itself from elevated UAC permission back to standard user? If not can the elevated process launch its copy with standard user token and then kill itself? Any code examples (C# preferred)? Details: Problem: - user installs my product (written in C#) - the installer elevates its UAC permission to admin - at the end the installer launches my exe - the exe inherits elevated permissions from admin - the exe mounts network drives which become invisible in Windows Explorer (that runs with regular permissions) Options I considered: 1) break installer into outer