c# - Launch application from App doesn't create files -


i need update windows 8.1 app adding functionality of calling external executable.

i therefore created file custom extension , associated application. launching file, application creates 2 files in same directory of first file.

if run application command line or double-clicking on file, works fine , creates both files. if run application launching file via windows store app this:

await launcher.launchfileasync(file, options);

the application starts (it displays alert telling me has started) doesn't create file.

can me?


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