I am Microsoft partner and software developer since over 20 years, with extensive experience in office automation (look at my portfolio).
I have made applications for data processing and automation in all business activities (administration, production, storage, finance, employees management, secretariate, etc.), using the most commonly used data sources (database, spreadsheet, email, XML and CSV, PDF and text document, web services, etc.) and interchanging data with many widespread applications (MsSQL server, Access, Excel, Word, Outlook, etc.)
My proposal consists of a desktop application developed in VB.net that stores data in a Microsoft SQL Server database.
The desktop application can be used simultaneously by an unlimited number of users, it is sufficient to install it on each PC.
Of course you have to install Microsoft SQL Server (the Express version is free) on a computer that is network connected to the other PCs, you must configure it for network access and install the database provided by me.
The desktop application shall be accompanied by a simple procedure for fast installation on PC, but it must be configured to log on to the server.
If you are interested in my proposal or need more information feel free to contact me via the Freelancer's chat.
Best regards