The fsx_sdk_sp1a.exe file you have requested: Official / Patches / Flight Simulator X SDK Service Pack 1A - 161.69mb is not available. Perhaps try browsing all files for the game Flight Simulator X and upload any files you want to share or are missing. This is the only information we could locate:

Microsoft Game Studios has released an updated SDK for Flight Simulator X.This is the SDK update for use with MS FSX SP1

We recommend you return to the download list and browse the links from there. If the problem persists, contact us with the details.

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