Sharing a temporary client certificate store between multiple processes - ssl-certificate

Question

Suppose Process A creates a temporary client certificate store, then launches Process B, passing the inherited cert store handle via some kind of inter process communication, then Process A exits. (see below)
When Process B starts running, it fetches the cert store handle and tries processing the temporary client store.
The question is: "Can a temporary cert store created in parent Process A (which exits) still be accessible by child Process B?" Thanks!
Process A
+--------------------------------------------------+
| CreateFile("certificate.pfx",...) |
| ReadFile(hFile,...) |
| Create CRYPT_DATA_BLOB |
| PFXImportCertStore(&cryptBlob,...) |
| CreateProcess(Process B hCertStore,...,TRUE,...) |
| (TRUE indicates new process inherits hCertStore) |
| Process Exits |
+--------------------------------------------------+
Process B
+--------------------------------------------------+
| Get handle hCertStore using Inter-Process Comms |
| CertFindCertificateInStore{hCertStore,...) |
| Process the temporary cert store... |
+--------------------------------------------------+

Answer 1

Ran a test, passing the temp cert store handle from Process A to Process B and was greeted with a crash dump:
STACK_TEXT:
00000017`7df4fcc0 00007ffa`655574c6 : 00000017`7df4fd30 00000017`7df4fd30 00000017`7df4fd10 00000000`ffffffff : crypt32!AutoResyncStore+0x10
00000017`7df4fd20 00007ff7`23c943cd : 0000016d`0dc53a2e 00000000`00000000 00007ff7`23cac7c2 00000000`0118b2d8 : crypt32!CertFindCertificateInStore+0x56
00000017`7df4fd70 0000016d`0dc53a2e : 00000000`00000000 00007ff7`23cac7c2 00000000`0118b2d8 00000000`00000000 : HelloWorld64!WinMain+0x121
00000017`7df4fd78 00000000`00000000 : 00007ff7`23cac7c2 00000000`0118b2d8 00000000`00000000 00000000`00000000 : 0x0000016d`0dc53a2e
SYMBOL_NAME: crypt32!AutoResyncStore+10
MODULE_NAME: crypt32
IMAGE_NAME: crypt32.dll
STACK_COMMAND: ~0s ; .ecxr ; kb
FAILURE_BUCKET_ID: INVALID_POINTER_READ_c0000005_crypt32.dll!AutoResyncStore
OS_VERSION: 10.0.18362.1
BUILDLAB_STR: 19h1_release
OSPLATFORM_TYPE: x64
OSNAME: Windows 10
Looks like it's not possible to access a temporary cert store using a shared handle from another process. As a workaround, I'll look into passing the PFX BLOB as follows:
Pass the PFX BLOB (i.e., the pfx file bytes) via IPC to another process.
Create a global shared named memory map for the BLOB, so any process with that
memory handle can access it and process the cert.
Thanks.