open this patcher and click on patch button
And appear another screen like
And click on Yes button
Then select IDMan.exe
And click on Open than one another screen is appear
Type First Name and click ok button than type last name and further click on ok button
And click on Yes button
Then select IDMan.exe
Type First Name and click ok button than type last name and further click on ok button
And close it you internet download manager is registered
and one file is paste into C:\Program Files (x86)\Internet Download Manager