[BUG] Failed to load createcim.dll (or wvdutilities.dll). Please confirm the dll is next to this exe.

Project
msixmgr

Describe the bug

Despite being in the same folder as the exe and all the attendant DLLs, msixmgr is complaining that they are not there. However a procmon trace is showing the image as loading fine.

C:\msixsrc\tool>msixmgr.exe -unpack -packagepath c:\msixsrc\tool\iikoOffice_7.4.7012.0_x64__x38xz7jh3b9tc-new.msix -destination c:\msixsrc\tool\iikoOffice.cim -create -vhdsize 2048 -filetype CIM -rootDirectory iikoOffice

Failed to load createcim.dll. Please confirm the dll is next to this exe.

Failed to remove the temp dir  "C:\\msixsrc\\tool\\ca0fa9c6-a9f3-422d-8894-fd8d1bd066ea"
Ignoring this non-fatal error and moving on

Creating the CIM file  c:\msixsrc\tool\iikoOffice.cim failed with HRESULT 0x8007007e

The above process expands and unpacks the files fine, but dies after a few minutes with above error.

If I try to create a VHDX instead, it fails immediately with this error:

C:\msixsrc\tool>msixmgr.exe -unpack -packagepath c:\msixsrc\tool\iikoOffice_7.4.7012.0_x64__x38xz7jh3b9tc-new.msix -destination c:\msixsrc\tool\iikoOffice.vhdx -create -vhdsize 2048 -filetype vhdx -rootDirectory iikoOffice

Failed to load wvdutilities.dll. Please confirm the dll is next to this exe.
Creating the VHD(X) file  c:\msixsrc\tool\iikoOffice.vhdx failed with HRESULT 0x8007007e

procmon shows:

15:35:53.6498612	msixmgr.exe	7672	CreateFile	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
15:35:53.6498853	msixmgr.exe	7672	QueryBasicInformationFile	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	CreationTime: 15/04/2021 00:43:34, LastAccessTime: 16/04/2021 15:29:32, LastWriteTime: 16/04/2021 15:29:32, ChangeTime: 16/04/2021 15:32:20, FileAttributes: A
15:35:53.6498960	msixmgr.exe	7672	CloseFile	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	
15:35:53.6499860	msixmgr.exe	7672	CreateFile	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	Desired Access: Read Data/List Directory, Execute/Traverse, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: n/a, ShareMode: Read, Delete, AllocationSize: n/a, OpenResult: Opened
15:35:53.6500187	msixmgr.exe	7672	CreateFileMapping	C:\msixsrc\tool\WVDUtilities.dll	FILE LOCKED WITH ONLY READERS	SyncType: SyncTypeCreateSection, PageProtection: PAGE_EXECUTE|PAGE_NOCACHE
15:35:53.6501771	msixmgr.exe	7672	CreateFileMapping	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	SyncType: SyncTypeOther
15:35:53.6502480	msixmgr.exe	7672	Load Image	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	Image Base: 0x7ffe2aca0000, Image Size: 0x12000
15:35:53.6503124	msixmgr.exe	7672	CloseFile	C:\msixsrc\tool\WVDUtilities.dll	SUCCESS	

To Reproduce
As above

Expected behavior
MSIX should create to CIM or VHDX file as instructed.

Platform
Win20H2

PS C:\msixsrc\tool> get-filehash *.exe, *.dll

Algorithm       Hash                                                                   Path
---------       ----                                                                   ----
SHA256          D410434499BE3630CB8D4623C23D3BA8C771BD7AC369DCAA49568DD5466F37F0       C:\msixsrc\tool\msixmgr.exe
SHA256          D0D34F60A5E412C54DA8607E1CB5A7419B600363FC924FAF890743B24DB190AA       C:\msixsrc\tool\ApplyACLs.dll
SHA256          4E9E349DEF32D3308457354A5C0838D8320098BA004BF0BAB9B94C3C3FABECD7       C:\msixsrc\tool\CreateCIM.dll
SHA256          C44897A3B025BE37345D8F6DEDDB7D6E21B4F9A427C7AE08D30C88064D5C227E       C:\msixsrc\tool\msix.dll
SHA256          18300E0BE930BB491F572676E24C546C0BA162C08B98B38C2E9D3839880443F2       C:\msixsrc\tool\WVDUtilities.dll

No source file or test is named. Start by reproducing the provided msixmgr.exe commands on Win20H2 and review the Procmon trace alongside the CreateCIM.dll and WVDUtilities.dll loading paths. Done means the commands create the requested CIM and VHDX files without HRESULT 0x8007007e.