Thursday, January 14, 2021

Temporary rollback to 1.2


Obviously some errors creeped into my code during the last major overhaul. Well, stuff happens...

I'll investigate this issue ASAP so I decided to withdraw the 1.3 download until the bugs fixed. The download link now points to the 1.2 version, which is functionally [almost] identical to the 1.3.

My apologies for this inconvenience.

Sunday, August 9, 2020



Yet another vLSO version. This time I revisited and rewrote roughly 75% of my source code.

I reworked the User activated calls dialog from scratch - now FSX and P3D events lists are embedded into the program and you don't need to find them on the internet anymore. 

AlphaSkins became payware in 2020, so I decided to stay with it's last freeware version 14.37 and selected only 23 skins for my program, which are most suitable (from my perspective).

All in all, this helped to reduce the installer size by some 6Mb.

And finally, before upgrading to the 1.3 version I suggest first to read the manual, which is available as a separate download on this blog.

Sunday, June 7, 2020


This is another release of vLSO.
Having more spare time I revisited my code and managed to find a few errors, which caused those notorious Access violation messages. Additionally, I completely reworked the way my program interacts with flight simulation. And lots of other 'under the hood' changes... Thus a new sub-version - 1.2

And of course, I strongly recommend to upgrade to this new version ASAP. 😎

I hope all of you are staying safe and healthy. Have fun and grab some Ok3!

Monday, May 25, 2020


Ok guys,
This is another vLSO version with some internal improvements and bugfixes.

Saturday, May 9, 2020

vLSO bugfix

This version should handle carrier and field approaches equally well.

Sunday, May 3, 2020

vLSO update

This update fixes few bugs, found during my last code revisiting.

Wednesday, April 29, 2020


vLSO now supports Prepar3D v5.
My huge thanks go to Jorge for his assistance in developing this version.

Sunday, April 19, 2020

vLSO update

This is a small update which fixes few minor bugs and typos. First of all, I thank Al for reporting FCLP passes not being recorded.

Also, Jorge reported that vLSO crashes when launched with Prepar3D v5. I'm unable to reproduce and investigate this issue, because my hardware and software don't match P3D v5 minimums. Alas...

However, I have some questions to Jorge (and other fellows with P3D v5 who use vLSO):
1. Does vLSO main window open up before 'Access violation' message appears?
2. If yes, does vLSO report correct P3D and SimConnect versions on its status bar?

Also, it's interesting to know what my FSchecker utility (found on the sidebar) reports about P3D v5.

To not clutter this blog, please send your reports to my email.

Thanks in advance!

I hope all of you are staying healthy and safe!

Monday, March 9, 2020

Custom P3D splash screens

Just want to share my custom splashes for Prepar3D series.

You can find a ZIP download link on the sidebar. Have fun!

Sunday, March 8, 2020

vLSO update

This is a small update, implementing less strict conditions for CASE III mile callouts.

Previously my upper altitude limit for callouts was 300' above the NATOPS specs (the green line). I changed the limits (the amber line) to loosely follow an averaged glideslope (the blue line) beyond 3 miles, so now both hardcore pros and casual pilots, who prefer night approaches purely by ILS needles, will hear those calls starting from 9 miles.