vhanla/wsaclientdetails.md

## wsaclientdetails.md

      
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              wsaclientdetails.md
            
          
    WSA Client (wsaclient.exe) is the manager UI application for Windows 11's Windows Subsystem for Android platform
and here I collect interesting stuff that I found in wsaclient.exe

One instance application.

wsaclient.exe is the only application that runs, and handles params for different actions, like uninstall, launch APKs, restart, etc.
To check and block other instances, it uses MUTEX strings and it is this one (it might change in future versions)
Mutex = CreateMutexExW(0, L"{42CEB0DF-325A-4FBE-BBB6-C259A6C3F0BB}", 0, 0x1F0001u);
Just check for "{42CEB0DF-325A-4FBE-BBB6-C259A6C3F0BB}" to see if WSA is running, at least its client. WSAService is better, but mostly this one serves.

WSA path
Original path:
%PROGRAMFILES%\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForAndroid_1.7.32815.0_x64__8wekyb3d8bbwe\WsaClient\WsaClient.exe
Shortcut accessible path:
%USERPROFILE%\AppData\Local\Microsoft\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForAndroid_8wekyb3d8bbwe\WsaClient.exe
or
%LOCALAPPDATA%\Microsoft\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForAndroid_8wekyb3d8bbwe\WsaClient.exe

NOTICE: version in original path changes accordingly, but shortcut path updates to it
3. Parameters

/deeplink wsa-client://developer-settings (starts debugging app settings)
/uninstall {package name} e.g /uninstall com.amazon.venezia
/restart (restarts WSA, not tested)
/launch wsa://{package name} (launches an app) e.g /launch wsa://com.amazon.venezia


Registry entries

HKEY_CURRENT_USER
\Software\Microsoft\WSA
\VMLifeCycleMode   HKEY_LOCAL_MACHINE,L"Software\Microsoft\WSA",L"VMLifeCycleMode",0x18u,0i64,&pvData,&pcbData);
\OptionalDiagnosticDataEnabled, 0 // when you opt to send diagnostic data

Interesting window creation

WndClass.lpfnWndProc = (WNDPROC)sub_1400389F0;
WndClass.hInstance = (HINSTANCE)*((_QWORD *)::lpParam + 2);
WndClass.lpszClassName = L"{1D0BDE36-7849-4135-AD13-8C75D8472111}";
WndClass.hCursor = LoadCursorW(0i64, (LPCWSTR)0x7F00);
RegisterClassW(&WndClass);
Window = CreateWindowExW(
0,
L"{1D0BDE36-7849-4135-AD13-8C75D8472111}",
&NameToResolve,
0,
0,
0,
0,
0,
0i64,
0i64,
*((HINSTANCE *)lpParam + 2),
lpParam);

App Details (in Windows Registry)
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall{package name}
e.g HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\com.amazon.venezia
\AndroidPackageName string (package name)
\AndroidVersionCode string
\DisplayIcon string (path to icon file)
\DisplayName string
\DisplayVersion string (version of the app)
\EstimatedSize dword
\InstallDate string e.g(YYYYmmdd)
\ModifyPath string "C:\Users\vhanla\AppData\Local\Microsoft\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForAndroid_8wekyb3d8bbwe\WsaClient.exe" /modify com.amazon.venezia
\NoRepair dword default 1
\Publisher string
\QuietUninstallString string "C:\Users\vhanla\AppData\Local\Microsoft\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForAndroid_8wekyb3d8bbwe\WsaClient.exe" /uninstall com.amazon.venezia
\UninstallString string "C:\Users\vhanla\AppData\Local\Microsoft\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForAndroid_8wekyb3d8bbwe\WsaClient.exe" /uninstall com.amazon.venezia

SubKeys (optional)
\Capabilities
\URLAssociations
\someuriname string e.g. wsa.hexvalues then use it to launch that app passing a param, e.g. feedly://params