I've included the entire log file which i also emailed to pgmusic support - here's a clue - when i run task manager, and i have to to end the program, there is another process - biab32.exe which seems to get spawned when the harmonizer is run. but 2 questions, what if i didn't have biab? would it still work? and why not the 64bit version executable.

here's the log: Exception log with detailed tech info. Generated on 6/25/2021 1:47:47 PM.
You may send it to the application vendor, helping them to understand what had happened.
Application title: Band-in-a-Box® - NONAME.SG1
Application file: C:\pt\DATA\bbw2_32.exe
------------------------------------------------------------------------------
Exception class: EInOutError
Exception message: I/O error 103.
Exception address: 00C4E534
------------------------------------------------------------------------------
Main thread ID = 15788
Exception thread ID = 15788
------------------------------------------------------------------------------
Exception stack
Stack list, generated 6/25/2021 1:47:44 PM
------------------------------------------------------------------------------
Call stack for main thread
Stack list, generated 6/25/2021 1:47:47 PM
[773838FC]{ntdll.dll } ZwGetContextThread
------------------------------------------------------------------------------
System : Home Edition, Version: 10.0, Build: 4A62, ""
Processor: Intel, Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz, 2800 MHz MMX SSE SSE2 SSE3 SSSE3 SSE41 SSE42 64 bits DEP
Memory: 32652; free 25074
Display : 1920x1080 pixels, 32 bpp
------------------------------------------------------------------------------
List of loaded modules:
[00400000] C:\pt\DATA\bbw2_32.exe
2020.0.0.734 - 2020.0.0.734
Unit versioning information:
JCL\source\common $URL$ $Revision$ $Date$
[1A560000] C:\pt\DATA\PGMusicAudioConverter.dll
<10000000> (no module version info)
[1A9B0000] C:\pt\DATA\GP5.DLL
<00400000> (no module version info)
[1AAF0000] C:\pt\DATA\BBWDLL25.DLL
<00400000> (no module version info)
[1ADF0000] C:\pt\Data\lib\lic07.dll
<00400000> 1.0.0.0 - 1.0.0.0
[1D500000] C:\pt\DATA\BBWRES2.DLL
<00400000> (no module version info)
[21280000] C:\WINDOWS\SYSTEM32\DivXa32.acm
<1C200000> 4.1.0.3920 - 4.1.00.3920
DivX;-) Audio Codec
[21AB0000] C:\Program Files (x86)\Coyote\CoyoteWT\CoyoteWT.dll
<10000000> 1.0.0.1 - 1, 0, 0, 1
CoyoteWT DLL
[46480000] C:\WINDOWS\SYSTEM32\security.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Security Support Provider Interface
[558E0000] C:\Windows\System32\l3codeca.acm
1.9.0.401 - 1, 9, 0, 0401
MPEG Layer-3 Audio Codec for MSACM
[55900000] C:\pt\DATA\Data\lib\libmediatoolsXP.dll
(no module version info)
[55930000] C:\WINDOWS\SYSTEM32\WMASF.DLL
12.0.19041.1 - 12.0.19041.1 (WinBuild.160101.0800)
Windows Media ASF DLL
[57230000] C:\WINDOWS\SYSTEM32\msgsm32.acm
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft GSM 6.10 Audio CODEC for MSACM
[57810000] C:\WINDOWS\SYSTEM32\ksuser.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
User CSA Library
[579A0000] C:\WINDOWS\SYSTEM32\msg711.acm
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft CCITT G.711 (A-Law and u-Law) CODEC for MSACM
[57C30000] C:\WINDOWS\SYSTEM32\MFReadWrite.dll
10.0.19041.746 - 10.0.19041.746 (WinBuild.160101.0800)
Media Foundation ReadWrite DLL
[62540000] C:\WINDOWS\SYSTEM32\AVRT.dll
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
Multimedia Realtime Runtime
[62560000] C:\WINDOWS\SYSTEM32\winmmbase.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Base Multimedia Extension API DLL
[62580000] C:\WINDOWS\SYSTEM32\msacm32.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft ACM Audio Filter
[65980000] C:\WINDOWS\SYSTEM32\mfperfhelper.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
MFPerf DLL
[65CD0000] C:\WINDOWS\SYSTEM32\RTWorkQ.DLL
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
Realtime WorkQueue DLL
[65D00000] C:\WINDOWS\SYSTEM32\MFPlat.DLL
10.0.19041.746 - 10.0.19041.1 (WinBuild.160101.0800)
Media Foundation Platform DLL
[668C0000] C:\WINDOWS\SYSTEM32\textinputframework.dll
10.0.19041.964 - 10.0.19041.964 (WinBuild.160101.0800)
"TextInputFramework.DYNLINK"
[669E0000] C:\WINDOWS\SYSTEM32\wdmaud.drv
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Winmm audio system driver
[67590000] C:\WINDOWS\System32\CoreUIComponents.dll
10.0.19041.546 - 10.0.19041.546
Microsoft Core UI Components Dll
[683A0000] C:\WINDOWS\SYSTEM32\wintypes.dll
10.0.19041.1052 - 10.0.19041.1 (WinBuild.160101.0800)
Windows Base Types DLL
[684A0000] C:\WINDOWS\System32\CoreMessaging.dll
10.0.19041.867 - 10.0.19041.867
Microsoft CoreMessaging Dll
[694A0000] C:\WINDOWS\SYSTEM32\msadp32.acm
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft ADPCM CODEC for MSACM
[694C0000] C:\WINDOWS\SYSTEM32\midimap.dll
10.0.19041.488 - 10.0.19041.488 (WinBuild.160101.0800)
Microsoft MIDI Mapper
[6E820000] C:\WINDOWS\SYSTEM32\wsock32.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Windows Socket 32-Bit DLL
[6E850000] C:\WINDOWS\SYSTEM32\SECUR32.DLL
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Security Support Provider Interface
[6F140000] C:\pt\DATA\Data\lib\libsndfile-1.DLL
(no module version info)
[6F350000] C:\WINDOWS\SYSTEM32\msdmo.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
DMO Runtime
[6F360000] C:\Windows\System32\devenum.dll
10.0.19041.746 - 10.0.19041.1 (WinBuild.160101.0800)
Device enumeration.
[6F5E0000] C:\WINDOWS\SYSTEM32\ntmarta.dll
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
Windows NT MARTA provider
[70940000] C:\WINDOWS\SYSTEM32\wininet.dll
11.0.19041.1052 - 11.00.19041.1 (WinBuild.160101.0800)
Internet Extensions for Win32
[71140000] C:\WINDOWS\SYSTEM32\olepro32.dll
10.0.19041.84 - 10.0.19041.84 (WinBuild.160101.0800)
OLEPRO32.DLL
[71160000] C:\WINDOWS\SYSTEM32\avifil32.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft AVI File support library
[71180000] C:\pt\DATA\portaudio_x86.dll
(no module version info)
[711E0000] C:\WINDOWS\SYSTEM32\MSVFW32.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft Video for Windows DLL
[726A0000] C:\WINDOWS\SYSTEM32\msacm32.drv
10.0.19041.488 - 10.0.19041.488 (WinBuild.160101.0800)
Microsoft Sound Mapper
[727F0000] C:\WINDOWS\System32\dbghelp.dll
10.0.19041.1052 - 10.0.19041.1052 (WinBuild.160101.0800)
Windows Image Helper
[73610000] C:\WINDOWS\SYSTEM32\netapi32.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Net Win32 API DLL
[738D0000] C:\WINDOWS\SYSTEM32\TextShaping.dll
(no module version info)
[73A40000] C:\Windows\System32\Wldp.dll
10.0.19041.662 - 10.0.19041.1 (WinBuild.160101.0800)
Windows Lockdown Policy
[73A70000] C:\WINDOWS\SYSTEM32\windows.storage.dll
10.0.19041.1023 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft WinRT Storage API
[74080000] C:\WINDOWS\SYSTEM32\AUDIOSES.DLL
10.0.19041.1023 - 10.0.19041.1 (WinBuild.160101.0800)
Audio Session
[741C0000] C:\WINDOWS\SYSTEM32\MMDevAPI.DLL
10.0.19041.1023 - 10.0.19041.1 (WinBuild.160101.0800)
MMDevice API
[74230000] C:\WINDOWS\SYSTEM32\kernel.appcore.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
AppModel API Host
[742D0000] C:\WINDOWS\SYSTEM32\UMPDC.dll
(no module version info)
[742E0000] C:\WINDOWS\SYSTEM32\powrprof.dll
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
Power Profile Helper DLL
[74330000] C:\WINDOWS\SYSTEM32\SSPICLI.DLL
10.0.19041.906 - 10.0.19041.906 (WinBuild.160101.0800)
Security Support Provider Interface
[74360000] C:\WINDOWS\SYSTEM32\MSASN1.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
ASN.1 Runtime APIs
[74390000] C:\WINDOWS\SYSTEM32\DEVOBJ.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Device Information Set DLL
[743C0000] C:\WINDOWS\SYSTEM32\WINSTA.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Winstation Library
[74410000] C:\WINDOWS\SYSTEM32\wtsapi32.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Windows Remote Desktop Session Host Server SDK APIs
[74460000] C:\WINDOWS\SYSTEM32\mpr.dll
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
Multiple Provider Router DLL
[74480000] C:\WINDOWS\SYSTEM32\winspool.drv
10.0.19041.1023 - 10.0.19041.1023 (WinBuild.160101.0800)
Windows Spooler Driver
[744F0000] C:\WINDOWS\SYSTEM32\version.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Version Checking and File Installation Libraries
[74500000] C:\WINDOWS\SYSTEM32\winmm.dll
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
MCI API DLL
[74540000] C:\WINDOWS\SYSTEM32\dwmapi.dll
10.0.19041.746 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft Desktop Window Manager API
[74DF0000] C:\WINDOWS\SYSTEM32\imaadp32.acm
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
IMA ADPCM CODEC for MSACM
[74E00000] C:\WINDOWS\SYSTEM32\msimg32.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
GDIEXT Client DLL
[74E10000] C:\WINDOWS\system32\uxtheme.dll
10.0.19041.746 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft UxTheme Library
[74E90000] C:\WINDOWS\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.19041.844_none_11adecdf30011423\comctl32.dll
6.10.19041.844 - 6.10 (WinBuild.160101.0800)
User Experience Controls Library
[751C0000] C:\WINDOWS\System32\user32.dll
10.0.19041.906 - 10.0.19041.1 (WinBuild.160101.0800)
Multi-User Windows USER API Client DLL
[75370000] C:\WINDOWS\System32\PSAPI.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Process Status Helper
[75380000] C:\WINDOWS\System32\msvcrt.dll
7.0.19041.546 - 7.0.19041.546 (WinBuild.160101.0800)
Windows NT CRT DLL
[75440000] C:\WINDOWS\System32\oleaut32.dll
10.0.19041.985 - 10.0.19041.985 (WinBuild.160101.0800)
OLEAUT32.DLL
[754E0000] C:\WINDOWS\System32\RPCRT4.dll
10.0.19041.1052 - 10.0.19041.1 (WinBuild.160101.0800)
Remote Procedure Call Runtime
[755A0000] C:\WINDOWS\System32\msvcp_win.dll
10.0.19041.789 - 10.0.19041.789 (WinBuild.160101.0800)
Microsoft® C Runtime Library
[75620000] C:\WINDOWS\System32\shcore.dll
10.0.19041.1023 - 10.0.19041.1 (WinBuild.160101.0800)
SHCORE
[756B0000] C:\WINDOWS\System32\WINTRUST.dll
10.0.19041.1052 - 10.0.19041.1052 (WinBuild.160101.0800)
Microsoft Trust Verification APIs
[75700000] C:\WINDOWS\System32\SETUPAPI.dll
10.0.19041.844 - 10.0.19041.1 (WinBuild.160101.0800)
Windows Setup API
[75B40000] C:\WINDOWS\System32\cfgmgr32.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Configuration Manager DLL
[75B80000] C:\WINDOWS\System32\clbcatq.dll
2001.12.10941.16384 - 2001.12.10941.16384 (WinBuild.160101.0800)
COM+ Configuration Catalog
[75C00000] C:\WINDOWS\System32\MSCTF.dll
10.0.19041.964 - 10.0.19041.1 (WinBuild.160101.0800)
MSCTF Server DLL
[75CE0000] C:\WINDOWS\System32\ucrtbase.dll
10.0.19041.789 - 10.0.19041.789 (WinBuild.160101.0800)
Microsoft® C Runtime Library
[75E00000] C:\WINDOWS\System32\WS2_32.dll
10.0.19041.546 - 10.0.19041.1 (WinBuild.160101.0800)
Windows Socket 2.0 32-Bit DLL
[76050000] C:\WINDOWS\System32\sechost.dll
10.0.19041.906 - 10.0.19041.1 (WinBuild.160101.0800)
Host for SCM/SDDL/LSA Lookup APIs
[760D0000] C:\WINDOWS\System32\win32u.dll
10.0.19041.1052 - 10.0.19041.1052 (WinBuild.160101.0800)
Win32u
[760F0000] C:\WINDOWS\System32\CRYPT32.dll
10.0.19041.844 - 10.0.19041.1 (WinBuild.160101.0800)
Crypto API32
[76200000] C:\WINDOWS\System32\ole32.dll
10.0.19041.746 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft OLE for Windows
[762F0000] C:\WINDOWS\System32\bcryptPrimitives.dll
10.0.19041.1023 - 10.0.19041.1023 (WinBuild.160101.0800)
Windows Cryptographic Primitives Library
[76350000] C:\WINDOWS\System32\SHLWAPI.dll
10.0.19041.1023 - 10.0.19041.1 (WinBuild.160101.0800)
Shell Light-weight Utility Library
[76400000] C:\WINDOWS\System32\imagehlp.dll
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Windows NT Image Helper
[76420000] C:\WINDOWS\System32\comdlg32.dll
10.0.19041.906 - 10.0.19041.1 (WinBuild.160101.0800)
Common Dialogs DLL
[764D0000] C:\WINDOWS\System32\combase.dll
10.0.19041.1052 - 10.0.19041.1 (WinBuild.160101.0800)
Microsoft COM for Windows
[76760000] C:\WINDOWS\System32\bcrypt.dll
10.0.19041.1023 - 10.0.19041.1 (WinBuild.160101.0800)
Windows Cryptographic Primitives Library
[76810000] C:\WINDOWS\System32\KERNEL32.DLL
10.0.19041.1023 - 10.0.19041.1023 (WinBuild.160101.0800)
Windows NT BASE API Client DLL
[76900000] C:\WINDOWS\System32\GDI32.dll
10.0.19041.746 - 10.0.19041.746 (WinBuild.160101.0800)
GDI Client DLL
[76930000] C:\WINDOWS\System32\KERNELBASE.dll
10.0.19041.1023 - 10.0.19041.1023 (WinBuild.160101.0800)
Windows NT BASE API Client DLL
[76BB0000] C:\WINDOWS\System32\gdi32full.dll
10.0.19041.928 - 10.0.19041.928 (WinBuild.160101.0800)
GDI Client DLL
[76C90000] C:\WINDOWS\System32\advapi32.dll
10.0.19041.1052 - 10.0.19041.1 (WinBuild.160101.0800)
Advanced Windows 32 Base API
[76D10000] C:\WINDOWS\System32\IMM32.DLL
10.0.19041.546 - 10.0.19041.546 (WinBuild.160101.0800)
Multi-User Windows IMM32 API Client DLL
[76D40000] C:\WINDOWS\System32\shell32.dll
10.0.19041.1023 - 10.0.19041.964 (WinBuild.160101.0800)
Windows Shell Common Dll
[77310000] C:\WINDOWS\SYSTEM32\ntdll.dll
10.0.19041.1023 - 10.0.19041.1023 (WinBuild.160101.0800)
NT Layer DLL
[79490000] C:\WINDOWS\SYSTEM32\dsound.dll
10.0.19041.1 - 10.0.19041.1 (WinBuild.160101.0800)
DirectSound
[79E40000] C:\Windows\System32\quartz.dll
10.0.19041.746 - 10.0.19041.1 (WinBuild.160101.0800)
DirectShow Runtime.
[7A220000] C:\WINDOWS\SYSTEM32\WMVCORE.DLL
12.0.19041.1052 - 12.0.19041.1052 (WinBuild.160101.0800)
Windows Media Playback/Authoring DLL
[7B470000] C:\pt\DATA\dllelastiquePro.dll
(no module version info)
[7B5B0000] C:\pt\DATA\dllelastiquePro3.dll
(no module version info)
[7B700000] C:\pt\DATA\elastiqueHarmony.dll
(no module version info)
[7BA80000] C:\pt\DATA\Data\lib\libmediatools.dll
(no module version info)
[7BB00000] C:\WINDOWS\SYSTEM32\MSVCP60.dll
7.0.19041.1 - 7.0.19041.1 (WinBuild.160101.0800)
Windows NT C++ Runtime Library DLL
------------------------------------------------------------------------------
Active Controls hierarchy:
TBandWindow "BandWindow"
------------------------------------------------------------------------------