[Bug 34829] wintrust:softpub crashes on Windows 8

https://bugs.winehq.org/show_bug.cgi?id=34829

--- Comment #2 from Nikolay Sivov  ---
I think it's worth to try to zero this one:

---
SAFE_PROVIDER_FUNCTIONS funcs = { sizeof(SAFE_PROVIDER_FUNCTIONS), 0 };
---

not just a first pointer but all of them, it's possible some garbage value sits
there.

If this doesn't help another possibility is that CRYPT_PROVIDER_DATA.cbStruct
should be initialized.