I'm developing a Visual Studio extensibility project using VSIX. By default, the VSIX file will install the assemblies in one of the following folders:
C:\Users\<UserName>\Appdata\Local\Microsoft\VisualStudio\10.0Exp\Extensions\Microsoft\<GPName>
C:\Users\<UserName>\AppData\Local\Microsoft\VisualStudio\10.0\Extensions\Microsoft p&p\<GPName>
Is it possible to change the output location?
No it's not possible. The VSIX installer chooses where to place your assemblies and the VSIX has no input into this process