[Dx4win] Cannot start after update

[Mats Naslund]

Hi,
I have been running v9.03 for a while but decided to try an update today. After update, DX4WIN won't start at all....The bug report says "EAssertion failed", and "Unknown IOTA OC297". Any suggestion?(I am pasting the report below.)

73, TNX

/Mats
-------------------date/time         : 2020-04-30, 19:48:48, 961ms
computer name     : DESKTOP-I44JCRQ
user name         : sm3lg
registered owner  : admin
operating system  : Windows NT New x64 build 9200
system language   : Swedish
system up time    : 1 hour
program up time   : 202 milliseconds
processors        : 4x Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz
physical memory   : 5171/8102 MB (free/total)
free disk space   : (C:) 355,84 GB
display mode      : 1366x768, 32 bit
process id        : $16dc
allocated memory  : 114,24 MB
executable        : dx4win.exe
exec. date/time   : 2020-04-30 19:33
version           : 9.0.9.1259
compiled with     : Delphi 7
madExcept version : 3.0n
dx4win.exe.mad    : $00037cc8, $b2644f86, $bd9b08ff
callstack crc     : $f0bc175a, $64c35f5e, $64c35f5e
exception number  : 1
exception class   : EAssertionFailed
exception message : TIOTASbyPrefix: unknown IOTA=OC297 for prefix=FO (C:\dx4win_src\trunk\prefs.pas, line 1890).

main thread ($2da8):
006a9c98 +3f0 dx4win.exe   segment%381 public%15606
006a6f18 +2f0 dx4win.exe   segment%381 public%15546
00671921 +14d dx4win.exe   segment%344 public%14685
004d83d9 +031 dx4win.exe   segment%72  public%6332
004d8040 +124 dx4win.exe   segment%72  public%6327
76ecd374 +034 user32.dll               SetWindowTextA
004df8ad +031 dx4win.exe   segment%72  public%6595
006c23c6 +06e dx4win.exe   segment%401 public%16227
772c6357 +017 KERNEL32.DLL             BaseThreadInitThunk

thread $33a8:
772c6357 +17 KERNEL32.DLL  BaseThreadInitThunk

thread $1c24:
772c6357 +17 KERNEL32.DLL  BaseThreadInitThunk

thread $1588:
772c6357 +17 KERNEL32.DLL  BaseThreadInitThunk

cpu registers:
eax = 097fabe0
ebx = 00000000
ecx = 0019f0a8
edx = 006a9c98
esi = 00000061
edi = 00670b64
eip = 006a9c98
esp = 0019f07c
ebp = 0019fc14

stack dump:
0019f07c  98 9c 6a 00 de fa ed 0e - 01 00 00 00 07 00 00 00  ..j.............
0019f08c  90 f0 19 00 98 9c 6a 00 - e0 ab 7f 09 00 00 00 00  ......j.........
0019f09c  61 00 00 00 64 0b 67 00 - 14 fc 19 00 ac f0 19 00  a...d.g.........
0019f0ac  98 9c 6a 00 1c fc 19 00 - c8 50 40 00 14 fc 19 00  ..j......P at .....
0019f0bc  64 0b 67 00 10 aa ac 02 - 3c 5c 50 00 00 00 00 00  d.g.....<\P.....
0019f0cc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f0dc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f0ec  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f0fc  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f10c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f11c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f12c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f13c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f14c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f15c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f16c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f17c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f18c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f19c  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................
0019f1ac  00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00  ................

disassembling:
[...]
006a9c62   lea     edx, [ebp-$700]
006a9c68   call    -$2a41e1 ($405a8c)     ; segment%0.public%292 (dx4win.exe)
006a9c6d   push    dword ptr [ebp-$a48]
006a9c73   lea     eax, [ebp-$a40]
006a9c79   mov     edx, 4
006a9c7e   call    -$2a40db ($405ba8)     ; segment%0.public%299 (dx4win.exe)
006a9c83   mov     eax, [ebp-$a40]
006a9c89   mov     ecx, $762
006a9c8e   mov     edx, $6a9ec0           ; 'C:\dx4win_src\trunk\prefs.pas'
006a9c93   call    -$2a4524 ($405774)     ; segment%0.public%275 (dx4win.exe)
006a9c98 > jmp     loc_6a9cb8
006a9c9a   inc     dword ptr [ebp-8]
006a9c9d   mov     edx, [ebp-8]
006a9ca0   shl     edx, 2
006a9ca3   lea     eax, [ebp-4]
006a9ca6   call    -$2a718b ($402b20)     ; segment%0.public%95 (dx4win.exe)
006a9cab   mov     eax, [ebp-4]
006a9cae   mov     edx, [ebp-8]
006a9cb1   mov     ecx, [ebp-$24]
006a9cb4   mov     [eax+edx*4-4], ecx
006a9cb8   lea     esi, [ebx+1]
[...]