https://bugs.winehq.org/show_bug.cgi?id=54164
--- Comment #2 from Kyle_Katarn contact@kcsoftwares.com --- https://learn.microsoft.com/en-us/windows/win32/msi/volumecostlist-control
The contents of the Text field of the Control table are never displayed by the VolumeCostList control. Instead this field specifies the style of text to be displayed by the control and contains a description of the control used by screen review utilities. To set the font and font style of a text string, prefix the string of displayed characters with {\style} or {&style}.
The "better fix" patch : Only skip first item (prefix) if it commands a Style (starts with \ or & in braces). In this case, also log a FIXME message to remind that further implementation is required to support styles.