Desktop app automation, for software with no API
A managed AI agent that drives the desktop and fat-client applications your business runs on — Sage 100 and the like — clicking, keying, and moving data exactly as your staff do, for software that no integration tool can reach.
The old software you can't replace
Critical work still runs in a desktop application built before APIs were a thing — Sage 100, an old ERP, an industry tool. Replacing it is too risky, so your team keys data into it by hand, all day, with no way to integrate.
- Staff manually keying data into old desktop software all day.
- No API, so modern integration tools can't connect to it.
- Data re-entered between the desktop app and everything else.
- Knowledge of the app locked in a few long-tenured people.
As a Operations Manager, I need to stop my team re-keying data into our desktop software.
As a IT / Systems Owner, I need to integrate a legacy app that has no API.
As a Owner / Founder, I need to modernize around old software without replacing it.
What the agent does
We map the exact steps your staff perform in the desktop app, then build an agent that drives it the same way — and co-manage it so it keeps working through updates.
- 01
Open the app
The agent launches and navigates the desktop application just like a person at the keyboard.
- 02
Read the screen
It reads fields, grids, and records straight from the interface — no API needed.
- 03
Key data in and out
It enters transactions and pulls data exactly as your staff do today.
- 04
Sync to your systems
Extracted data flows into your other systems so there's one source of truth.
- 05
Flag the exceptions
Anything unexpected — an error dialog, a changed screen — routes to a person with context.
Wires into
- Sage 100 & desktop ERPs
- Fat-client / Windows apps
- Your CRM / database / spreadsheets
- Email & storage
What it does
- Desktop UI automation
- Screen reading & data entry
- Two-way sync to modern systems
- Exception handling
What's included
- Process mapping of the app
- Desktop automation build
- Credential vaulting
- Exception monitoring & break/fix
We automate legacy and desktop software others can't touch. A verified win:
Our pick accuracy was 94%, which sounds good until you realize that a 6% error rate meant 50+ wrong shipments per week and angry customers calling. ThunderStaff built a pick-and-pack validation system that sequences picks by zone, validates SKU and lot by barcode scan, and flags mis-picks before they ship. Accuracy went to 99.6%. Chargebacks dropped 82%. Our warehouse manager said it was the first time in 12 years he did not dread Monday morning.
Re-keying into old software is pure, repetitive cost. An agent that drives the desktop app recovers those hours and connects a system you thought was unintegratable — without the risk of replacing it.
Run the numbers in the ROI calculatorRelated automations
Questions, answered
Our app has no API — can you really automate it?
Yes. The agent drives the desktop application's interface directly — clicking and keying like a person — so it works with fat-client software that offers no integration at all.
Does this work with Sage 100 and similar?
Yes. Desktop ERPs and Windows business apps like Sage 100 are exactly the case this solves, including syncing their data to your modern systems.
What happens when the app updates?
We co-manage it. When a screen or workflow changes, the agent flags it and we adjust — you don't get a silent breakage.
How fast can it go live?
Most builds go from process mapping to a live agent in days, starting with a free Process Blueprint.
Bridge old software to the modern world
Start with a free Process Blueprint: we map your desktop-app workflow and scope an agent to drive it — no commitment.