Crash on INSTALLOPTIONS_INITDIALOG

[TobbeSweden]

I have this code in my installer:

code:
MessageBox MB_OK "$PLUGINSDIR\ioPreReq.ini"



!insertmacro INSTALLOPTIONS_INITDIALOG "ioPreReq.ini"



MessageBox MB_OK "Test 5"

A user tells me he sees the pluginsdir message box, but after that the installer quits before he sees the "Test 5" message box.

His ioPreReq.ini file looks like this:

code:
[Settings]

NumFields=12

RTL=0



[Field 1]

Type=Bitmap

Left=13

Top=17

Right=32

Bottom=36

Text=C:\Users\1234\AppData\Local\Temp\nss1813.tmp\check.bmp

Flags=TRANSPARENT



[Field 2]

Type=Label

Left=32

Top=20

Right=131

Bottom=39

Text=Internet Explorer 4 or greater



[Field 4]

Type=Label

Left=160

Top=21

Right=293

Bottom=38

Text=Visual C++ 8 (2005) DLLs



[Field 3]

Type=Bitmap

Left=141

Top=17

Right=160

Bottom=36

Flags=TRANSPARENT

Text=C:\Users\1234\AppData\Local\Temp\nss1813.tmp\check.bmp





[Field 5]

Type=Label

Left=1

Top=1

Right=299

Bottom=17

Text=The following items needs to be installed on your system before you can install LOSI 0.4.5



[Field 6]

Type=Label

Left=1

Top=47

Right=299

Bottom=74

Text=The following items are not needed but they are recomended. If you don't have them it's recomended to install them. This can be done after you have installed LOSI 0.4.5



[Field 7]

Type=Bitmap

Left=13

Top=74

Right=32

Bottom=93

Text=C:\Users\1234\AppData\Local\Temp\nss1813.tmp\check.bmp

Flags=TRANSPARENT



[Field 8]

Type=Bitmap

Left=141

Top=74

Right=160

Bottom=93

Flags=TRANSPARENT

Text=C:\Users\1234\AppData\Local\Temp\nss1813.tmp\check.bmp



[Field 9]

Type=Label

Left=32

Top=76

Right=137

Bottom=92

Text=Visual C++ 8 (2005) SP1 DLLs



[Field 10]

Type=Label

Left=160

Top=76

Right=293

Bottom=92

Text=Visual C++ 9 (2008) DLLs



[Field 11]

Type=Label

Left=1

Top=122

Right=247

Bottom=132

Text=Find download links to anything you might be missing at:



[Field 12]

Type=Link

Left=1

Top=132

Right=181

Bottom=141

Text=http://tlundberg.com/LOSI/prereq.html

State=http://tlundberg.com/LOSI/prereq.html

The check.bmp file exists.

He's running Vista home premium, 32bit.

What could be causing the quit/crash?