Installer Crashes in rpcrt4.dll

[rioki]

I could only reproduce this issue on one system, but there it is consistent.

I am trying to install winamp (winamp5601_full:emusic-7plus_en-us.exe). After the "Chose Component" screen while opening the "Choose Start Options" screen the application crashes with: "The instruction at "0x7c9109d8" referenced memory at "0x00000000". The memory could not be "read"." When attaching a debugger the call stack is in rpcrt4.dll.

There is currently no winamp installed. There was once a year ago or so.

OS: Windows XP SP3 (Version 2002)
Winamp: 5601

This may be an NSIS issue, but I don't know.

Edit: Procmon did not show anything usable.