You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
msrcpoc was reported malicious
OSV:MAL-2026-14444 - Malicious code in msrcpoc (PyPI)

msrcpoc
99.1.9

This version was deleted from PyPI around 2026-08-28. Installing fails with:
$ pip3 install msrcpoc==99.1.9 ERROR: Could not find a version that satisfies the requirement msrcpoc==99.1.9
View other deleted versions of msrcpoc

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2026-08-27/ \ msrcpoc==99.1.9
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
msrcpoc-99.1.9-py2.py3-none-any.whl (1.0KB)
msrcpoc-99.1.9.tar.gz (0.4KB)