How can a VSTO program get requireAdministrator

黑老 1

Recently, I was using VSTO to write ta COM plug-in of Office,
and I encountered some problems.
The program needs to save some files in disk C or read some files from disk C,
but it always reports an error.

It seems that VSTO does not have permission to access disk C.
Winform programs can obtain administrator permissions by modifying app.manifest,
but VSTO programs do not seem to work.
What is the solution?

Viorel 112.1K Reputation points

2022-11-01T08:22:34.537+00:00

As an intermediate solution, maybe you can write a Forms program (perhaps without displaying the form and icon on taskbar), which will be started by your Plug-in (using Process.Start). For simple interaction, you can write some data to an accessible folder, then your program will copy the files to C: after acquiring permissions. Maybe you can keep it permanently running, and organise a more elevated interaction.
RLWA32 40,286 Reputation points

2022-11-01T08:50:03.93+00:00

Just saying that your plug-in cannot read files from or write files to disc C does not give us much information. There may be a good reason why the security for the file system location that you want to access is restrictive for non-administrators.

With better information about what you want to accomplish (besides simply reading/writing files) we may be able to suggest alternatives that do not require your plug-in to access these secure locations.