Can You Dynamically Request Elevation in Windows Applications?

Requesting Elevation at Runtime

A common requirement for Windows applications is the ability to request administrator privileges at runtime. While this can be achieved through compile-time modifications, the question arises: can we do it dynamically?

Runtime Elevation

To elevate privileges dynamically, a manifest is required. This manifest can be embedded in the application or placed alongside the executable. By specifying the "requireAdministrator" attribute within the manifest, the system prompts the user for authorization when the application is launched.

Alternatively, if you desire to elevate privileges for the current instance, you can right-click the executable or shortcut and select "Run As Administrator."

Code Approach

In code, the "runas" verb can be employed to launch a process with elevated permissions. This is exemplified in the following code snippet:

ShellExecute( NULL, "runas", "c:\windows\notepad.exe", " c:\temp\report.txt", NULL, SW_SHOWNORMAL );

By providing the "runas" verb, the system prompts the user to confirm the elevation request. This allows the current instance to operate with elevated privileges while preserving any memory-stored data.

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