What is the aim of your intention? Why not just using NTNAME for the authentication?
I'm not sure how the order is in which the parameters are applied - means comes the reload first and then the variable-value is set or is it reverse and also if you could repeat the /v parameter for multiple variables or if it needs a different syntax? But this could you simply test - maybe within any dummy-application without section access.
Beside this your syntax/logic isn't quite right because you missed a v and I'm not sure if the variable-values need a quotes-wrapping or not - therefore to set the variable vUser the parameter should rather look like: /vvUser=YourValue.
Further you tries to apply a partial load with replace - if this will really work with section access? If yes, you need also to change the parameter /r to /rp.