Go ahead and try it. We've added Steam support to wisotool, and I could imagine the wisotool verb for a game could edit the .vdf file when replaying the cached install, but it's not something I'll have time to play with myself. Current wine should execute the directx runtime installer a lot faster, which ought to help.
Apparently Analagous Threads
- Using wisotool with Steam
- New winetricks 20110417: new verbs braid braid_demo cod5_waw deadspace dotnet20sp2 dragonage_ue mise popfs splitsecond splitsecond_demo spore
- New winetricks 20110628: 18 new verbs (adobe_diged, audible, irfanview, winamp, bioshock2, lego_potc_demo, nfsworld, d3dx9_43, glidewrapper, grabfullscreen, ...)
- wisotool: automated game installer, now supports 12 games
- DX steam problems on WINE