Have you updated to most recent version and followed the uninstall instructions?
Yes, I have now.
I just attempted to send SILK using 1.1.0.16 and had the wallet crash in the exact same manner that it has been crashing again.
I also attempted to generate a new address in the Send/Receive tab and had the same crash.
Next I'll try it on a different computer that has 32-bit Windows 7 instead of 64. Hopefully this is the last time I have to download the blockchain

I know it's part of the routine to delete everything except wallet.dat but at this point I don't think it's doing you any good to re-sync. I don't think any of these wallets are crashing due to the SILK network or syncing. They are crashing because there are missing or corrupt dll files somewhere on your PC.