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FSUIPC 7 will not install


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I am seeing this error in event viewer. Any got an answer for this?

Faulting application name: Install_FSUIPC7.exe, version:, time stamp: 0x5df6d605
Faulting module name: nsisXML.dll, version:, time stamp: 0x502443ee
Exception code: 0xc0000005
Fault offset: 0x00001ebd
Faulting process id: 0x3f98
Faulting application start time: 0x01d71ea445bbab7b
Faulting application path: C:\Users\Ross\Desktop\Install_FSUIPC7\Install_FSUIPC7\Install_FSUIPC7.exe
Faulting module path: C:\Users\Ross\AppData\Local\Temp\nsa2585.tmp\nsisXML.dll
Report Id: 5f97d081-e61b-4361-8445-523af92265b6
Faulting package full name: 
Faulting package-relative application ID: 


This is on a fresh rebuild of Windows 7 Pro.

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10 hours ago, RossG said:

This is on a fresh rebuild of Windows 7 Pro.

Does MSFS even work on Windows 7? That's very surprising if so, since MS has stopped Win7 support. I think this is stated as the minimum requirement:

Microsoft Flight Simulator 2020 requires, at minimum, a Windows 10 PC with either an Intel i5-4460 or AMD Ryzen 3 1200 processor, an Nvidia GTX 770 or AMD Radeon RX 570 GPU, 8 GB RAM, 2 GB VRAM, 150GB of hard drive space, and support for DirectX 11.

FSUIPC7 is made for MSFS and so also needs Windows 10. 



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Try re-installing (or installing) the VC++ redistributables. First, uninstall any of the 2015, 2017 and 2019 VC++ redistributables from the Windows App management panel, and then re-installed  the combined redistributable packages (both the x86 and x64 ones) from here:

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12 hours ago, RossG said:

Didn't fix the problem. Thing is it shows fsuipc opening when I start MSFS but it seems there are files missing in the fsuipc folder. All that is there is the executable to start it.

All you need in the executable, however other files should be installed. The looks like the installer is crashing due to a corrupt EXE.xml file. You need to delete this file (or rename) and then re-run the installer. Depending upon whether you have an MS Store or Steam install, this file will be in the following location:
   Steam: <user>\AppData\Roaming\Microsoft Flight Simulator
   MS Store: <user>\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache

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